diff --git a/MMOTestServer/MMOserver/Api/BossRaidResult.cs b/MMOTestServer/MMOserver/Api/BossRaidResult.cs
new file mode 100644
index 0000000..1a0abc3
--- /dev/null
+++ b/MMOTestServer/MMOserver/Api/BossRaidResult.cs
@@ -0,0 +1,13 @@
+namespace MMOserver.Api;
+
+// RestApi.BossRaidAccesssAsync 반환용 도메인 모델
+// API 응답(BossRaidAccessResponse)을 직접 노출하지 않고 이걸로 매핑해서 반환
+public sealed class BossRaidResult
+{
+    public int RoomId { get; init; }
+    public string SessionName { get; init; } = string.Empty;
+    public int BossId { get; init; }
+    public List<string> Players { get; init; } = new();
+    public string Status { get; init; } = string.Empty;
+    public Dictionary<string, string>? Tokens { get; init; }
+}
diff --git a/MMOTestServer/MMOserver/Api/RestApi.cs b/MMOTestServer/MMOserver/Api/RestApi.cs
index 99e1f7a..98132c3 100644
--- a/MMOTestServer/MMOserver/Api/RestApi.cs
+++ b/MMOTestServer/MMOserver/Api/RestApi.cs
@@ -1,6 +1,7 @@
 using System.Net;
 using System.Net.Http.Json;
 using System.Text.Json.Serialization;
+using MMOserver.Config;
 using MMOserver.Utils;
 using Serilog;
 
@@ -8,8 +9,6 @@ namespace MMOserver.Api;
 
 public class RestApi : Singleton<RestApi>
 {
-    private const string VERIFY_URL = "https://a301.api.tolelom.xyz";
-    private const string INTERNAL_API_KEY = "017f15b28143fc67d2e5bed283c37d2da858b9f294990a5334238e055e3f5425";
     private readonly HttpClient httpClient = new HttpClient { Timeout = TimeSpan.FromSeconds(5) };
 
     private const int MAX_RETRY = 3;
@@ -17,7 +16,7 @@ public class RestApi : Singleton<RestApi>
 
     public RestApi()
     {
-        httpClient.DefaultRequestHeaders.Add("X-API-Key", INTERNAL_API_KEY);
+        httpClient.DefaultRequestHeaders.Add("X-API-Key", AppConfig.RestApi.ApiKey);
     }
 
     // 토큰 검증 - 성공 시 username 반환
@@ -25,7 +24,7 @@ public class RestApi : Singleton<RestApi>
     // 타임아웃/네트워크 오류 → 최대 MAX_RETRY회 재시도 후 null 반환
     public async Task<string?> VerifyTokenAsync(string token)
     {
-        string url = VERIFY_URL + "/api/internal/auth/verify";
+        string url = AppConfig.RestApi.BaseUrl + AppConfig.RestApi.VerifyToken;
         for (int attempt = 1; attempt <= MAX_RETRY; attempt++)
         {
             try
@@ -36,7 +35,7 @@ public class RestApi : Singleton<RestApi>
                 if (response.StatusCode == HttpStatusCode.Unauthorized)
                 {
                     Log.Warning("[RestApi] 토큰 인증 실패 (401)");
-                    return null;
+                    return "";
                 }
 
                 response.EnsureSuccessStatusCode();
@@ -57,7 +56,7 @@ public class RestApi : Singleton<RestApi>
             }
         }
 
-        return null;
+        return "";
     }
 
     // 플레이어 프로필 조회 - 성공 시 PlayerProfileResponse 반환
@@ -131,4 +130,108 @@ public class RestApi : Singleton<RestApi>
         [JsonPropertyName("sprintMultiplier")]
         public double SprintMultiplier { get; set; }
     }
+
+    // 레이드 채널 접속 여부 체크
+    // 성공 시 BossRaidResult 반환, 실패/거절 시 null 반환
+    public async Task<BossRaidResult?> BossRaidAccesssAsync(List<string> userNames, int bossId)
+    {
+        string url = AppConfig.RestApi.BaseUrl + "/api/internal/bossraid/entry";
+
+        for (int attempt = 1; attempt <= MAX_RETRY; attempt++)
+        {
+            try
+            {
+                HttpResponseMessage response = await httpClient.PostAsJsonAsync(url, new { usernames = userNames, bossId });
+
+                // 401: API 키 인증 실패
+                if (response.StatusCode == HttpStatusCode.Unauthorized)
+                {
+                    Log.Warning("[RestApi] 보스 레이드 접속 인증 실패 (401)");
+                    return null;
+                }
+
+                // 400: 입장 조건 미충족 (레벨 부족, 이미 진행중 등)
+                if (response.StatusCode == HttpStatusCode.BadRequest)
+                {
+                    Log.Warning("[RestApi] 보스 레이드 입장 거절 (400) BossId={BossId}", bossId);
+                    return null;
+                }
+
+                response.EnsureSuccessStatusCode();
+
+                BossRaidAccessResponse? raw = await response.Content.ReadFromJsonAsync<BossRaidAccessResponse>();
+                if (raw == null)
+                {
+                    return null;
+                }
+
+                // API 응답 → 도메인 모델 매핑
+                return new BossRaidResult
+                {
+                    RoomId = raw.RoomId,
+                    SessionName = raw.SessionName ?? string.Empty,
+                    BossId = raw.BossId,
+                    Players = raw.Players,
+                    Status = raw.Status ?? string.Empty,
+                    Tokens = raw.Tokens
+                };
+            }
+            catch (Exception ex) when (attempt < MAX_RETRY)
+            {
+                Log.Warning("[RestApi] 보스 레이드 통신 실패 (시도 {Attempt}/{Max}): {Message}", attempt, MAX_RETRY, ex.Message);
+                await Task.Delay(RETRY_DELAY);
+            }
+            catch (Exception ex)
+            {
+                Log.Error("[RestApi] 보스 레이드 최종 통신 실패 ({Max}회 시도): {Message}", MAX_RETRY, ex.Message);
+            }
+        }
+
+        return null;
+    }
+
+    private sealed class BossRaidAccessResponse
+    {
+        [JsonPropertyName("roomId")]
+        public int RoomId
+        {
+            get;
+            set;
+        }
+
+        [JsonPropertyName("sessionName")]
+        public string? SessionName
+        {
+            get;
+            set;
+        }
+
+        [JsonPropertyName("bossId")]
+        public int BossId
+        {
+            get;
+            set;
+        }
+
+        [JsonPropertyName("players")]
+        public List<string> Players
+        {
+            get;
+            set;
+        } = new();
+
+        [JsonPropertyName("status")]
+        public string? Status
+        {
+            get;
+            set;
+        }
+
+        [JsonPropertyName("tokens")]
+        public Dictionary<string, string>? Tokens
+        {
+            get;
+            set;
+        }
+    }
 }
diff --git a/MMOTestServer/MMOserver/Config/AppConfig.cs b/MMOTestServer/MMOserver/Config/AppConfig.cs
new file mode 100644
index 0000000..f93fad7
--- /dev/null
+++ b/MMOTestServer/MMOserver/Config/AppConfig.cs
@@ -0,0 +1,62 @@
+using Microsoft.Extensions.Configuration;
+
+namespace MMOserver.Config;
+
+public static class AppConfig
+{
+    public static ServerConfig Server
+    {
+        get;
+        private set;
+    } = null!;
+
+    public static RestApiConfig RestApi
+    {
+        get;
+        private set;
+    } = null!;
+
+    public static void Initialize(IConfiguration config)
+    {
+        Server = new ServerConfig(config.GetSection("Server"));
+        RestApi = new RestApiConfig(config.GetSection("RestApi"));
+    }
+}
+
+public sealed class ServerConfig
+{
+    public int Port
+    {
+        get;
+    }
+
+    public ServerConfig(IConfigurationSection section)
+    {
+        Port = int.Parse(section["Port"] ?? throw new InvalidOperationException("Server:Port is required in config.json"));
+    }
+}
+
+public sealed class RestApiConfig
+{
+    public string BaseUrl
+    {
+        get;
+    }
+
+    public string VerifyToken
+    {
+        get;
+    }
+
+    public string ApiKey
+    {
+        get;
+    }
+
+    public RestApiConfig(IConfigurationSection section)
+    {
+        BaseUrl = section["BaseUrl"] ?? throw new InvalidOperationException("RestApi:BaseUrl is required in config.json");
+        VerifyToken = section["VerifyToken"] ?? throw new InvalidOperationException("RestApi:BaseUrl is required in config.json");
+        ApiKey = section["ApiKey"] ?? throw new InvalidOperationException("RestApi:ApiKey is required in config.json");
+    }
+}
diff --git a/MMOTestServer/MMOserver/Game/Channel/Channel.cs b/MMOTestServer/MMOserver/Game/Channel/Channel.cs
index cc6996f..98ee1ff 100644
--- a/MMOTestServer/MMOserver/Game/Channel/Channel.cs
+++ b/MMOTestServer/MMOserver/Game/Channel/Channel.cs
@@ -1,27 +1,51 @@
 using LiteNetLib;
 using MMOserver.Game.Channel.Maps;
+using MMOserver.Game.Channel.Maps.InstanceDungeun;
 using MMOserver.Game.Party;
 
 namespace MMOserver.Game.Channel;
 
 public class Channel
 {
-    // 로비
-    private Robby robby = new Robby();
-
-    // 파티
-    private PartyManager partyManager = new PartyManager();
+    // 채널 내 유저 NetPeer (hashKey → NetPeer) — BroadcastToChannel 교차 조회 제거용
+    private readonly Dictionary<int, NetPeer> connectPeers = new();
 
     // 채널 내 유저 상태 (hashKey → Player)
-    private Dictionary<int, Player> connectUsers = new Dictionary<int, Player>();
+    private readonly Dictionary<int, Player> connectUsers = new();
 
-    // 채널 내 유저 NetPeer (hashKey → NetPeer) — BroadcastToChannel 교차 조회 제거용
-    private Dictionary<int, NetPeer> connectPeers = new Dictionary<int, NetPeer>();
+    // 채널 맵 관리
+    private readonly Dictionary<int, AMap> maps = new();
+
+    // 진행중 채널 맵 관리
+    private readonly Dictionary<int, AMap> useInstanceMaps = new();
+
+    // 동적 레이드 맵 할당용 ID 카운터 (사전 생성 10개 이후부터 시작)
+    private int nextDynamicRaidMapId = 1011;
+
+    // 파티
+    private readonly PartyManager partyManager = new();
+
+    public Channel(int channelId)
+    {
+        ChannelId = channelId;
+
+        // 일단 하드코딩으로 맵 생성
+        {
+            // 로비
+            maps.Add(1, new Robby(1));
+
+            // 인던
+            int defaultValue = 1000;
+            for (int i = 1; i <= 10; i++)
+            {
+                maps.Add(i + defaultValue, new BossInstance(i + defaultValue));
+            }
+        }
+    }
 
     public int ChannelId
     {
         get;
-        private set;
     }
 
     public int UserCount
@@ -36,25 +60,49 @@ public class Channel
         private set;
     } = 100;
 
-    public Channel(int channelId)
-    {
-        ChannelId = channelId;
-    }
-
     public void AddUser(int userId, Player player, NetPeer peer)
     {
         connectUsers[userId] = player;
         connectPeers[userId] = peer;
         UserCount++;
+
+        // 처음 접속 시 1번 맵(로비)으로 입장
+        ChangeMap(userId, player, 1);
     }
 
     public void RemoveUser(int userId)
     {
+        // 현재 맵에서도 제거
+        if (connectUsers.TryGetValue(userId, out Player? player) &&
+            maps.TryGetValue(player.CurrentMapId, out AMap? currentMap))
+        {
+            currentMap.RemoveUser(userId);
+        }
+
         connectUsers.Remove(userId);
         connectPeers.Remove(userId);
         UserCount--;
     }
 
+    // 맵 이동 (현재 맵 제거 → 새 맵 추가 → CurrentMapId 갱신)
+    public bool ChangeMap(int userId, Player player, int mapId)
+    {
+        if (!maps.TryGetValue(mapId, out AMap? newMap))
+        {
+            return false;
+        }
+
+        // 기존 맵에서 제거
+        if (maps.TryGetValue(player.CurrentMapId, out AMap? oldMap))
+        {
+            oldMap.RemoveUser(userId);
+        }
+
+        newMap.AddUser(userId, player);
+        player.CurrentMapId = mapId;
+        return true;
+    }
+
     // 재연결(WiFi→LTE 등) 시 동일 유저의 peer 교체
     public void UpdatePeer(int userId, NetPeer peer)
     {
@@ -96,10 +144,54 @@ public class Channel
         return -1;
     }
 
-    // 로비 가져옴
-    public Robby GetRobby()
+    // 맵들 가져옴
+    public Dictionary<int, AMap> GetMaps()
     {
-        return robby;
+        return maps;
+    }
+
+    // 맵 가져옴
+    public AMap? GetMap(int mapId)
+    {
+        AMap? map = null;
+        maps.TryGetValue(mapId, out map);
+        return map;
+    }
+
+    // 사용 가능한 레이드 맵 ID 반환
+    // 기존 맵(1001~) 중 미사용 탐색 → 없으면 동적 생성 후 반환
+    public int GetOrCreateAvailableRaidMap()
+    {
+        // 기존 맵 중 미사용 탐색
+        foreach (int mapId in maps.Keys)
+        {
+            if (mapId >= 1001 && !useInstanceMaps.ContainsKey(mapId))
+            {
+                return mapId;
+            }
+        }
+
+        // 모두 사용 중 → 동적 생성
+        int newMapId = nextDynamicRaidMapId++;
+        BossInstance newMap = new(newMapId);
+        maps.Add(newMapId, newMap);
+
+        return newMapId;
+    }
+
+    // 레이드 맵 사용 시작 (진행중 목록에 등록)
+    public void AddInstanceMap(int mapId)
+    {
+        if (maps.TryGetValue(mapId, out AMap? map))
+        {
+            useInstanceMaps[mapId] = map;
+        }
+    }
+
+    // 레이드 맵 사용 종료 (진행중 목록에서 제거)
+    public void RemoveInstanceMap(int mapId)
+    {
+        useInstanceMaps.Remove(mapId);
     }
 
     // 파티매니저 가져옴
@@ -107,4 +199,6 @@ public class Channel
     {
         return partyManager;
     }
+
+    // TODO : 채널 가져오기
 }
diff --git a/MMOTestServer/MMOserver/Game/Channel/Maps/AMap.cs b/MMOTestServer/MMOserver/Game/Channel/Maps/AMap.cs
new file mode 100644
index 0000000..cda1f4d
--- /dev/null
+++ b/MMOTestServer/MMOserver/Game/Channel/Maps/AMap.cs
@@ -0,0 +1,24 @@
+namespace MMOserver.Game.Channel.Maps;
+
+public abstract class AMap
+{
+    private Dictionary<int, Player> users = new Dictionary<int, Player>();
+
+    public abstract EnumMap GetMapType();
+    public abstract int GetMapId();
+
+    public void AddUser(int userId, Player player)
+    {
+        users[userId] = player;
+    }
+
+    public void RemoveUser(int userId)
+    {
+        users.Remove(userId);
+    }
+
+    public Dictionary<int, Player> GetUsers()
+    {
+        return users;
+    }
+}
diff --git a/MMOTestServer/MMOserver/Game/Channel/Maps/EunmMap.cs b/MMOTestServer/MMOserver/Game/Channel/Maps/EunmMap.cs
new file mode 100644
index 0000000..2380ed9
--- /dev/null
+++ b/MMOTestServer/MMOserver/Game/Channel/Maps/EunmMap.cs
@@ -0,0 +1,8 @@
+namespace MMOserver.Game.Channel.Maps;
+
+public enum EnumMap : int
+{
+    NONE = 0,
+    ROBBY = 1,
+    INSTANCE = 10,
+}
diff --git a/MMOTestServer/MMOserver/Game/Channel/Maps/InstanceDungeun/BossInstance.cs b/MMOTestServer/MMOserver/Game/Channel/Maps/InstanceDungeun/BossInstance.cs
new file mode 100644
index 0000000..e9b6f9e
--- /dev/null
+++ b/MMOTestServer/MMOserver/Game/Channel/Maps/InstanceDungeun/BossInstance.cs
@@ -0,0 +1,34 @@
+using MMOserver.Game.Channel.Maps;
+using MMOserver.Game.Engine;
+
+namespace MMOserver.Game.Channel.Maps.InstanceDungeun;
+
+// 인스턴스 보스 맵에 들어갈때 쓰는 것
+public class BossInstance : AMap
+{
+    private EnumMap enumMap;
+    private int mapId;
+
+    // 마을 시작 지점 넣어 둔다.
+    public static Vector3 StartPosition
+    {
+        get;
+        set;
+    } = new Vector3(0, 0, 0);
+
+    public BossInstance(int mapId, EnumMap enumMap = EnumMap.INSTANCE)
+    {
+        this.enumMap = enumMap;
+        this.mapId = mapId;
+    }
+
+    public override EnumMap GetMapType()
+    {
+        return enumMap;
+    }
+
+    public override int GetMapId()
+    {
+        return mapId;
+    }
+}
diff --git a/MMOTestServer/MMOserver/Game/Channel/Maps/Robby.cs b/MMOTestServer/MMOserver/Game/Channel/Maps/Robby.cs
index 14985d8..d8890c5 100644
--- a/MMOTestServer/MMOserver/Game/Channel/Maps/Robby.cs
+++ b/MMOTestServer/MMOserver/Game/Channel/Maps/Robby.cs
@@ -2,8 +2,11 @@
 
 namespace MMOserver.Game.Channel.Maps;
 
-public class Robby
+public class Robby : AMap
 {
+    private EnumMap enumMap;
+    private int mapId;
+
     // 마을 시작 지점 넣어 둔다.
     public static Vector3 StartPosition
     {
@@ -11,7 +14,19 @@ public class Robby
         set;
     } = new Vector3(0, 0, 0);
 
-    public Robby()
+    public Robby(int  mapId, EnumMap enumMap = EnumMap.ROBBY)
     {
+        this.enumMap = enumMap;
+        this.mapId = mapId;
+    }
+
+    public override EnumMap GetMapType()
+    {
+        return enumMap;
+    }
+
+    public override int GetMapId()
+    {
+        return mapId;
     }
 }
diff --git a/MMOTestServer/MMOserver/Game/GameServer.cs b/MMOTestServer/MMOserver/Game/GameServer.cs
index de25b12..4388dd1 100644
--- a/MMOTestServer/MMOserver/Game/GameServer.cs
+++ b/MMOTestServer/MMOserver/Game/GameServer.cs
@@ -2,6 +2,7 @@ using LiteNetLib;
 using LiteNetLib.Utils;
 using MMOserver.Api;
 using MMOserver.Game.Channel;
+using MMOserver.Game.Channel.Maps;
 using MMOserver.Game.Party;
 using MMOserver.Packet;
 using MMOserver.Utils;
@@ -15,7 +16,7 @@ namespace MMOserver.Game;
 public class GameServer : ServerBase
 {
     private readonly Dictionary<ushort, Action<NetPeer, int, byte[]>> packetHandlers;
-    private UuidGenerator userUuidGenerator;
+    private readonly UuidGenerator userUuidGenerator;
 
     public GameServer(int port, string connectionString) : base(port, connectionString)
     {
@@ -27,8 +28,11 @@ public class GameServer : ServerBase
             [(ushort)PacketCode.TRANSFORM_PLAYER] = OnTransformPlayer,
             [(ushort)PacketCode.ACTION_PLAYER] = OnActionPlayer,
             [(ushort)PacketCode.STATE_PLAYER] = OnStatePlayer,
+            [(ushort)PacketCode.CHANGE_MAP] = OnChangeMap,
+            [(ushort)PacketCode.PARTY_CHANGE_MAP] = OnPartyChangeMap,
+            [(ushort)PacketCode.INTO_BOSS_RAID] = OnIntoBossRaid,
             [(ushort)PacketCode.REQUEST_PARTY] = OnRequestParty,
-            [(ushort)PacketCode.CHAT] = OnChat,
+            [(ushort)PacketCode.CHAT] = OnChat
         };
         userUuidGenerator = new UuidGenerator();
     }
@@ -42,7 +46,7 @@ public class GameServer : ServerBase
         }
 
         // 세션에 넣지는 않는다.
-        NetDataReader reader = new NetDataReader(payload);
+        NetDataReader reader = new(payload);
         short code = reader.GetShort();
         short bodyLength = reader.GetShort();
 
@@ -74,11 +78,12 @@ public class GameServer : ServerBase
         {
             // 더미 클라다.
             ChannelManager cm = ChannelManager.Instance;
-            Player newPlayer = new Player
+            Player newPlayer = new()
             {
                 HashKey = hashKey,
                 PlayerId = hashKey,
-                Nickname = hashKey.ToString()
+                Nickname = hashKey.ToString(),
+                CurrentMapId = 1
             };
 
             cm.AddUser(1, hashKey, newPlayer, peer);
@@ -134,6 +139,7 @@ public class GameServer : ServerBase
         if (verifiedUsername != null)
         {
             ((Session)peer.Tag).Username = verifiedUsername;
+            ((Session)peer.Tag).UserName = verifiedUsername;
         }
         sessions[hashKey] = peer;
         tokenHash[token] = hashKey;
@@ -214,7 +220,7 @@ public class GameServer : ServerBase
 
     private void SendLoadChannelPacket(NetPeer peer, int hashKey)
     {
-        LoadChannelPacket loadChannelPacket = new LoadChannelPacket();
+        LoadChannelPacket loadChannelPacket = new();
         foreach (Channel.Channel channel in ChannelManager.Instance.GetChannels().Values)
         {
             if (channel.ChannelId <= 0)
@@ -227,26 +233,26 @@ public class GameServer : ServerBase
                 continue;
             }
 
-            ChannelInfo info = new ChannelInfo();
+            ChannelInfo info = new();
             info.ChannelId = channel.ChannelId;
             info.ChannelUserCount = channel.UserCount;
             info.ChannelUserMax = channel.UserCountMax;
             loadChannelPacket.Channels.Add(info);
         }
 
-        byte[] data = PacketSerializer.Serialize<LoadChannelPacket>((ushort)PacketCode.LOAD_CHANNEL, loadChannelPacket);
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.LOAD_CHANNEL, loadChannelPacket);
         SendTo(peer, data);
     }
 
     // 나간 유저를 같은 채널 유저들에게 알림 (UPDATE_CHANNEL_USER IsAdd=false)
     private void SendExitChannelPacket(NetPeer peer, int hashKey, int channelId, Player player)
     {
-        UpdateChannelUserPacket packet = new UpdateChannelUserPacket
+        UpdateChannelUserPacket packet = new()
         {
             Players = ToPlayerInfo(player),
             IsAdd = false
         };
-        byte[] data = PacketSerializer.Serialize<UpdateChannelUserPacket>((ushort)PacketCode.UPDATE_CHANNEL_USER, packet);
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_CHANNEL_USER, packet);
         // 이미 채널에서 제거된 후라 나간 본인에게는 전송되지 않음
         BroadcastToChannel(channelId, data);
     }
@@ -267,7 +273,7 @@ public class GameServer : ServerBase
         Player? myPlayer = channel.GetPlayer(hashKey);
 
         // 1. 새 유저에게: 자신을 제외한 기존 채널 유저 목록 + 파티 목록 전송
-        IntoChannelPacket response = new IntoChannelPacket { ChannelId = channelId };
+        IntoChannelPacket response = new() { ChannelId = channelId };
         foreach (int userId in channel.GetConnectUsers())
         {
             if (userId == hashKey)
@@ -293,18 +299,18 @@ public class GameServer : ServerBase
             });
         }
 
-        byte[] toNewUser = PacketSerializer.Serialize<IntoChannelPacket>((ushort)PacketCode.INTO_CHANNEL, response);
+        byte[] toNewUser = PacketSerializer.Serialize((ushort)PacketCode.INTO_CHANNEL, response);
         SendTo(peer, toNewUser);
 
         // 2. 기존 유저들에게: 새 유저 입장 알림
         if (myPlayer != null)
         {
-            UpdateChannelUserPacket notify = new UpdateChannelUserPacket
+            UpdateChannelUserPacket notify = new()
             {
                 Players = ToPlayerInfo(myPlayer),
                 IsAdd = true
             };
-            byte[] toOthers = PacketSerializer.Serialize<UpdateChannelUserPacket>((ushort)PacketCode.UPDATE_CHANNEL_USER, notify);
+            byte[] toOthers = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_CHANNEL_USER, notify);
             BroadcastToChannel(channelId, toOthers, peer);
         }
     }
@@ -321,19 +327,19 @@ public class GameServer : ServerBase
         {
             Log.Warning("[GameServer] LOAD_GAME 플레이어 없음 HashKey={Key}", hashKey);
             byte[] denied =
-                PacketSerializer.Serialize<LoadGamePacket>((ushort)PacketCode.LOAD_GAME, new LoadGamePacket { IsAccepted = false });
+                PacketSerializer.Serialize((ushort)PacketCode.LOAD_GAME, new LoadGamePacket { IsAccepted = false });
             SendTo(peer, denied);
             return;
         }
 
-        LoadGamePacket packet = new LoadGamePacket
+        LoadGamePacket packet = new()
         {
             IsAccepted = true,
             Player = ToPlayerInfo(player),
-            MaplId = channelId,
+            MaplId = channelId
         };
 
-        byte[] data = PacketSerializer.Serialize<LoadGamePacket>((ushort)PacketCode.LOAD_GAME, packet);
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.LOAD_GAME, packet);
         SendTo(peer, data);
         Log.Debug("[GameServer] LOAD_GAME HashKey={Key} PlayerId={PlayerId} ChannelId={ChannelId}", hashKey, player.PlayerId, channelId);
     }
@@ -359,6 +365,32 @@ public class GameServer : ServerBase
         }
     }
 
+    // 특정 맵의 유저들에게 전송 (exclude 지정 시 해당 피어 제외)
+    private void BroadcastToMap(int channelId, int mapId, byte[] data, NetPeer? exclude = null,
+        DeliveryMethod method = DeliveryMethod.ReliableOrdered)
+    {
+        AMap? map = ChannelManager.Instance.GetChannel(channelId).GetMap(mapId);
+        if (map == null)
+        {
+            return;
+        }
+
+        foreach (int userId in map.GetUsers().Keys)
+        {
+            if (!sessions.TryGetValue(userId, out NetPeer? targetPeer))
+            {
+                continue;
+            }
+
+            if (exclude != null && targetPeer.Id == exclude.Id)
+            {
+                continue;
+            }
+
+            SendTo(targetPeer, data, method);
+        }
+    }
+
     // ============================================================
     // Player ↔ PlayerInfo 변환 (패킷 전송 시에만 사용)
     // ============================================================
@@ -421,7 +453,7 @@ public class GameServer : ServerBase
         {
             Log.Warning("[GameServer] INTO_CHANNEL 채널 인원 초과 HashKey={Key} ChannelId={ChannelId} UserCount={Count}/{Max}",
                 hashKey, packet.ChannelId, newChannel.UserCount, newChannel.UserCountMax);
-            byte[] full = PacketSerializer.Serialize<IntoChannelPacket>((ushort)PacketCode.INTO_CHANNEL,
+            byte[] full = PacketSerializer.Serialize((ushort)PacketCode.INTO_CHANNEL,
                 new IntoChannelPacket { ChannelId = -1 });
             SendTo(peer, full);
             return;
@@ -432,7 +464,7 @@ public class GameServer : ServerBase
         {
             HashKey = hashKey,
             PlayerId = hashKey,
-            Nickname = hashKey.ToString()
+            Nickname = ((Session)peer.Tag).UserName
         };
 
         Session? session = peer.Tag as Session;
@@ -479,6 +511,34 @@ public class GameServer : ServerBase
 
         // 내 정보 전달
         SendLoadGame(peer, hashKey);
+
+        // 초기 맵(로비 1번) 진입 알림
+        // Channel.AddUser → ChangeMap(1) 에서 이미 맵에 추가됨
+        PlayerInfo playerInfo = ToPlayerInfo(newPlayer);
+        int initMapId = newPlayer.CurrentMapId;
+
+        // 기존 맵 유저들에게 입장 알림 (본인 제외)
+        ChangeMapPacket enterNotify = new() { MapId = initMapId, IsAdd = true, Player = playerInfo };
+        BroadcastToMap(packet.ChannelId, initMapId,
+            PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, enterNotify), peer);
+
+        // 본인에게 현재 맵의 플레이어 목록 전달
+        ChangeMapPacket response = new() { MapId = initMapId };
+        AMap? initMap = newChannel.GetMap(initMapId);
+        if (initMap != null)
+        {
+            foreach (var (userId, p) in initMap.GetUsers())
+            {
+                if (userId == hashKey)
+                {
+                    continue;
+                }
+
+                response.Players.Add(ToPlayerInfo(p));
+            }
+        }
+
+        SendTo(peer, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, response));
     }
 
     private void OnIntoChannelParty(NetPeer peer, int hashKey, byte[] payload)
@@ -500,15 +560,15 @@ public class GameServer : ServerBase
         }
 
         // 새로운 파티를 복사한다
-        PartyInfo newParty = new PartyInfo();
-        newParty.DeepCopySemi(preParty);
+        PartyInfo tempParty = new();
+        tempParty.DeepCopySemi(preParty);
 
         // 최대 인원 체크
-        if (newChannel.UserCount + newParty.PartyMemberIds.Count >= newChannel.UserCountMax)
+        if (newChannel.UserCount + preParty.PartyMemberIds.Count >= newChannel.UserCountMax)
         {
             Log.Warning("[GameServer] INTO_CHANNEL_PARTY 채널 인원 초과 HashKey={Key} ChannelId={ChannelId} UserCount={Count}/{Max}",
                 hashKey, packet.ChannelId, newChannel.UserCount, newChannel.UserCountMax);
-            byte[] full = PacketSerializer.Serialize<IntoChannelPacket>((ushort)PacketCode.INTO_CHANNEL,
+            byte[] full = PacketSerializer.Serialize((ushort)PacketCode.INTO_CHANNEL,
                 new IntoChannelPacket { ChannelId = -1 });
             SendTo(peer, full);
             return;
@@ -520,42 +580,43 @@ public class GameServer : ServerBase
             Player? player = preChannel.GetPlayer(memberId);
             if (player != null)
             {
-                UpdateChannelUserPacket exitNotify = new UpdateChannelUserPacket
+                UpdateChannelUserPacket exitNotify = new()
                 {
                     Players = ToPlayerInfo(player),
                     IsAdd = false
                 };
-                byte[] exitData = PacketSerializer.Serialize<UpdateChannelUserPacket>((ushort)PacketCode.UPDATE_CHANNEL_USER, exitNotify);
+                byte[] exitData = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_CHANNEL_USER, exitNotify);
                 BroadcastToChannel(preChannelId, exitData);
 
                 // 이전 채널에서 제거
                 preChannel.RemoveUser(memberId);
 
                 // 현재 존재하는 파티원만 추가한다.
-                newParty.PartyMemberIds.Add(memberId);
+                tempParty.PartyMemberIds.Add(memberId);
             }
         }
 
         // 이전채널에서 파티를 지운다.
         preChannel.GetPartyManager().DeleteParty(hashKey, packet.PartyId, out preParty);
-        UpdatePartyPacket notify = new UpdatePartyPacket
+        UpdatePartyPacket notify = new()
         {
             PartyId = preParty!.PartyId,
             Type = PartyUpdateType.DELETE,
-            LeaderId = preParty.LeaderId,
+            LeaderId = preParty.LeaderId
         };
-        BroadcastToChannel(preChannelId,
-            PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, notify)); // 채널 전체 파티 목록 갱신
+
+        // 채널 전체 파티 목록 갱신
+        BroadcastToChannel(preChannelId, PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, notify));
 
         // 새로운 채널에 파티원 넣기
-        foreach (int memberId in newParty.PartyMemberIds)
+        foreach (int memberId in tempParty.PartyMemberIds)
         {
             sessions.TryGetValue(memberId, out NetPeer? memberPeer);
 
             if (memberPeer != null)
             {
                 // 새 채널에 유저 추가
-                Player newPlayer = new Player
+                Player newPlayer = new()
                 {
                     HashKey = memberId,
                     PlayerId = memberId,
@@ -572,17 +633,25 @@ public class GameServer : ServerBase
         }
 
         // 새로운 채널에 파티를 추가한다.
-        newChannel.GetPartyManager().CreateParty(newParty.LeaderId, newParty.PartyName, out newParty, newParty.PartyMemberIds);
-
-        // 새 채널 기존 유저들에게 파티 생성 알림
-        UpdatePartyPacket createNotify = new UpdatePartyPacket
+        if (newChannel.GetPartyManager()
+                .CreateParty(tempParty.LeaderId, tempParty.PartyName, out PartyInfo? createdParty, tempParty.PartyMemberIds) &&
+            createdParty != null)
         {
-            PartyId = newParty.PartyId,
-            Type = PartyUpdateType.CREATE,
-            LeaderId = newParty.LeaderId,
-            PartyName = newParty.PartyName,
-        };
-        BroadcastToChannel(packet.ChannelId, PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, createNotify));
+            // 새 채널 기존 유저들에게 파티 생성 알림
+            UpdatePartyPacket createNotify = new()
+            {
+                PartyId = createdParty.PartyId,
+                Type = PartyUpdateType.CREATE,
+                LeaderId = createdParty.LeaderId,
+                PartyName = createdParty.PartyName
+            };
+            BroadcastToChannel(packet.ChannelId,
+                PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, createNotify));
+        }
+        else
+        {
+            Log.Warning("[GameServer] 파티생성 실패 !!!");
+        }
     }
 
     private void OnExitChannel(NetPeer peer, int hashKey, byte[] payload)
@@ -624,17 +693,19 @@ public class GameServer : ServerBase
 
         // 채널 내 플레이어 위치/방향 상태 갱신
         Player? player = cm.GetChannel(channelId).GetPlayer(hashKey);
-        if (player != null)
+        if (player == null)
         {
-            player.PosX = packet.Position.X;
-            player.PosY = packet.Position.Y;
-            player.PosZ = packet.Position.Z;
-            player.RotY = packet.RotY;
+            return;
         }
 
-        // 같은 채널 유저들에게 위치/방향 브로드캐스트 (나 제외)
-        byte[] data = PacketSerializer.Serialize<TransformPlayerPacket>((ushort)PacketCode.TRANSFORM_PLAYER, packet);
-        BroadcastToChannel(channelId, data, peer, DeliveryMethod.Unreliable);
+        player.PosX = packet.Position.X;
+        player.PosY = packet.Position.Y;
+        player.PosZ = packet.Position.Z;
+        player.RotY = packet.RotY;
+
+        // 같은 맵 유저들에게 위치/방향 브로드캐스트 (나 제외)
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.TRANSFORM_PLAYER, packet);
+        BroadcastToMap(channelId, player.CurrentMapId, data, peer, DeliveryMethod.Unreliable);
     }
 
     private void OnActionPlayer(NetPeer peer, int hashKey, byte[] payload)
@@ -648,9 +719,15 @@ public class GameServer : ServerBase
             return;
         }
 
-        // 같은 채널 유저들에게 행동 브로드캐스트 (나 제외)
-        byte[] data = PacketSerializer.Serialize<ActionPlayerPacket>((ushort)PacketCode.ACTION_PLAYER, packet);
-        BroadcastToChannel(channelId, data, peer);
+        Player? player = cm.GetChannel(channelId).GetPlayer(hashKey);
+        if (player == null)
+        {
+            return;
+        }
+
+        // 같은 맵 유저들에게 행동 브로드캐스트 (나 제외)
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.ACTION_PLAYER, packet);
+        BroadcastToMap(channelId, player.CurrentMapId, data, peer);
     }
 
     private void OnStatePlayer(NetPeer peer, int hashKey, byte[] payload)
@@ -666,17 +743,19 @@ public class GameServer : ServerBase
 
         // 채널 내 플레이어 HP/MP 상태 갱신
         Player? player = cm.GetChannel(channelId).GetPlayer(hashKey);
-        if (player != null)
+        if (player == null)
         {
-            player.Hp = packet.Hp;
-            player.MaxHp = packet.MaxHp;
-            player.Mp = packet.Mp;
-            player.MaxMp = packet.MaxMp;
+            return;
         }
 
-        // 같은 채널 유저들에게 스테이트 브로드캐스트 (나 제외)
-        byte[] data = PacketSerializer.Serialize<StatePlayerPacket>((ushort)PacketCode.STATE_PLAYER, packet);
-        BroadcastToChannel(channelId, data, peer);
+        player.Hp = packet.Hp;
+        player.MaxHp = packet.MaxHp;
+        player.Mp = packet.Mp;
+        player.MaxMp = packet.MaxMp;
+
+        // 같은 맵 유저들에게 스테이트 브로드캐스트 (나 제외)
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.STATE_PLAYER, packet);
+        BroadcastToMap(channelId, player.CurrentMapId, data, peer);
     }
 
     private void OnRequestParty(NetPeer peer, int hashKey, byte[] payload)
@@ -702,15 +781,15 @@ public class GameServer : ServerBase
                     return;
                 }
 
-                UpdatePartyPacket notify = new UpdatePartyPacket
+                UpdatePartyPacket notify = new()
                 {
                     PartyId = party!.PartyId,
                     Type = PartyUpdateType.CREATE,
                     LeaderId = party.LeaderId,
                     PlayerId = hashKey,
-                    PartyName = party.PartyName,
+                    PartyName = party.PartyName
                 };
-                byte[] data = PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, notify);
+                byte[] data = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, notify);
                 BroadcastToChannel(channelId, data); // 채널 전체 파티 목록 갱신
                 break;
             }
@@ -722,28 +801,28 @@ public class GameServer : ServerBase
                     return;
                 }
 
-                UpdatePartyPacket notify = new UpdatePartyPacket
+                UpdatePartyPacket notify = new()
                 {
                     PartyId = party!.PartyId,
                     Type = PartyUpdateType.JOIN,
                     LeaderId = party.LeaderId,
-                    PlayerId = hashKey,
+                    PlayerId = hashKey
                 };
-                byte[] data = PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, notify);
+                byte[] data = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, notify);
                 BroadcastToChannel(channelId, data); // 채널 전체 파티 목록 갱신
                 break;
             }
             case PartyUpdateType.LEAVE:
             {
-                if (!pm.LeaveParty(hashKey, out PartyInfo? party))
+                if (!pm.LeaveParty(hashKey, out PartyInfo? party) || party == null)
                 {
                     SendError(peer, ErrorCode.PARTY_NOT_IN_PARTY);
                     return;
                 }
 
-                UpdatePartyPacket notify = new UpdatePartyPacket
+                UpdatePartyPacket notify = new()
                 {
-                    PartyId = party.PartyId, Type = PartyUpdateType.DELETE, LeaderId = party?.LeaderId ?? 0, PlayerId = hashKey,
+                    PartyId = party.PartyId, Type = PartyUpdateType.DELETE, LeaderId = party.LeaderId, PlayerId = hashKey
                 };
 
                 // 파티가 남아있으면 살린다.
@@ -752,7 +831,7 @@ public class GameServer : ServerBase
                     notify.Type = PartyUpdateType.LEAVE;
                 }
 
-                byte[] data = PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, notify);
+                byte[] data = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, notify);
                 BroadcastToChannel(channelId, data); // 채널 전체 파티 목록 갱신 (탈퇴자 포함)
                 break;
             }
@@ -764,13 +843,13 @@ public class GameServer : ServerBase
                     return;
                 }
 
-                UpdatePartyPacket notify = new UpdatePartyPacket
+                UpdatePartyPacket notify = new()
                 {
                     PartyId = party!.PartyId,
                     Type = PartyUpdateType.DELETE,
-                    LeaderId = party.LeaderId,
+                    LeaderId = party.LeaderId
                 };
-                byte[] data = PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, notify);
+                byte[] data = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, notify);
                 BroadcastToChannel(channelId, data); // 채널 전체 파티 목록 갱신
                 break;
             }
@@ -782,15 +861,15 @@ public class GameServer : ServerBase
                     return;
                 }
 
-                UpdatePartyPacket notify = new UpdatePartyPacket
+                UpdatePartyPacket notify = new()
                 {
                     PartyId = req.PartyId,
                     Type = PartyUpdateType.UPDATE,
                     LeaderId = party?.LeaderId ?? 0,
                     PlayerId = hashKey,
-                    PartyName = req.PartyName,
+                    PartyName = req.PartyName
                 };
-                byte[] data = PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, notify);
+                byte[] data = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, notify);
                 BroadcastToChannel(channelId, data); // 채널 전체 파티 목록 갱신
                 break;
             }
@@ -815,16 +894,16 @@ public class GameServer : ServerBase
         }
 
         // 서버에서 발신자 정보 채워줌 (클라 위조 방지)
-        ChatPacket res = new ChatPacket
+        ChatPacket res = new()
         {
             Type = req.Type,
             SenderId = sender.PlayerId,
             SenderNickname = sender.Nickname,
             TargetId = req.TargetId,
-            Message = req.Message,
+            Message = req.Message
         };
 
-        byte[] data = PacketSerializer.Serialize<ChatPacket>((ushort)PacketCode.CHAT, res);
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.CHAT, res);
 
         switch (req.Type)
         {
@@ -866,6 +945,259 @@ public class GameServer : ServerBase
         }
     }
 
+    private void OnChangeMap(NetPeer peer, int hashKey, byte[] payload)
+    {
+        ChangeMapPacket packet = Serializer.Deserialize<ChangeMapPacket>(new ReadOnlyMemory<byte>(payload));
+
+        ChannelManager cm = ChannelManager.Instance;
+        int channelId = cm.HasUser(hashKey);
+        if (channelId < 0)
+        {
+            return;
+        }
+
+        Channel.Channel channel = cm.GetChannel(channelId);
+        Player? player = channel.GetPlayer(hashKey);
+        if (player == null)
+        {
+            return;
+        }
+
+        int oldMapId = player.CurrentMapId;
+
+        if (!channel.ChangeMap(hashKey, player, packet.MapId))
+        {
+            Log.Warning("[GameServer] CHANGE_MAP 유효하지 않은 맵 HashKey={Key} MapId={MapId}", hashKey, packet.MapId);
+            return;
+        }
+
+        PlayerInfo playerInfo = ToPlayerInfo(player);
+
+        // 기존 맵 유저들에게 퇴장 알림
+        ChangeMapPacket exitNotify = new() { MapId = oldMapId, IsAdd = false, Player = playerInfo };
+        BroadcastToMap(channelId, oldMapId, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, exitNotify));
+
+        // 새 맵 유저들에게 입장 알림 (본인 제외)
+        ChangeMapPacket enterNotify = new() { MapId = packet.MapId, IsAdd = true, Player = playerInfo };
+        BroadcastToMap(channelId, packet.MapId, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, enterNotify), peer);
+
+        // 본인에게 새 맵 플레이어 목록 전달
+        ChangeMapPacket response = new() { MapId = packet.MapId };
+        AMap? newMap = channel.GetMap(packet.MapId);
+        if (newMap != null)
+        {
+            foreach ((int uid, Player p) in newMap.GetUsers())
+            {
+                if (uid == hashKey)
+                {
+                    continue;
+                }
+
+                response.Players.Add(ToPlayerInfo(p));
+            }
+        }
+
+        SendTo(peer, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, response));
+        Log.Debug("[GameServer] CHANGE_MAP HashKey={Key} OldMap={OldMapId} NewMap={MapId}", hashKey, oldMapId, packet.MapId);
+    }
+
+    private void OnPartyChangeMap(NetPeer peer, int hashKey, byte[] payload)
+    {
+        PartyChangeMapPacket packet = Serializer.Deserialize<PartyChangeMapPacket>(new ReadOnlyMemory<byte>(payload));
+
+        ChannelManager cm = ChannelManager.Instance;
+        int channelId = cm.HasUser(hashKey);
+        if (channelId < 0)
+        {
+            return;
+        }
+
+        Channel.Channel channel = cm.GetChannel(channelId);
+
+        // 맵 유효성 체크
+        if (channel.GetMap(packet.MapId) == null)
+        {
+            Log.Warning("[GameServer] PARTY_CHANGE_MAP 유효하지 않은 맵 HashKey={Key} MapId={MapId}", hashKey, packet.MapId);
+            return;
+        }
+
+        // 파티 확인
+        PartyInfo? party = channel.GetPartyManager().GetParty(packet.PartyId);
+        if (party == null)
+        {
+            Log.Warning("[GameServer] PARTY_CHANGE_MAP 파티 없음 HashKey={Key} PartyId={PartyId}", hashKey, packet.PartyId);
+            return;
+        }
+
+        // 파티원 전체 맵 이동 + 각자에게 알림
+        foreach (int memberId in party.PartyMemberIds)
+        {
+            Player? memberPlayer = channel.GetPlayer(memberId);
+            if (memberPlayer == null)
+            {
+                continue;
+            }
+
+            int oldMapId = memberPlayer.CurrentMapId;
+            channel.ChangeMap(memberId, memberPlayer, packet.MapId);
+
+            if (!sessions.TryGetValue(memberId, out NetPeer? memberPeer))
+            {
+                continue;
+            }
+
+            PlayerInfo memberInfo = ToPlayerInfo(memberPlayer);
+
+            // 기존 맵 유저들에게 퇴장 알림
+            ChangeMapPacket exitNotify = new() { MapId = oldMapId, IsAdd = false, Player = memberInfo };
+            BroadcastToMap(channelId, oldMapId, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, exitNotify));
+
+            // 새 맵 유저들에게 입장 알림 (본인 제외)
+            ChangeMapPacket enterNotify = new() { MapId = packet.MapId, IsAdd = true, Player = memberInfo };
+            BroadcastToMap(channelId, packet.MapId, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, enterNotify), memberPeer);
+
+            // 본인에게 새 맵 플레이어 목록 전달
+            ChangeMapPacket response = new() { MapId = packet.MapId };
+            AMap? newMap = channel.GetMap(packet.MapId);
+            if (newMap != null)
+            {
+                foreach ((int uid, Player p) in newMap.GetUsers())
+                {
+                    if (uid == memberId)
+                    {
+                        continue;
+                    }
+
+                    response.Players.Add(ToPlayerInfo(p));
+                }
+            }
+
+            SendTo(memberPeer, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, response));
+        }
+
+        Log.Debug("[GameServer] PARTY_CHANGE_MAP HashKey={Key} PartyId={PartyId} MapId={MapId}", hashKey, packet.PartyId, packet.MapId);
+    }
+
+    private async void OnIntoBossRaid(NetPeer peer, int hashKey, byte[] payload)
+    {
+        IntoBossRaidPacket packet = Serializer.Deserialize<IntoBossRaidPacket>(new ReadOnlyMemory<byte>(payload));
+
+        ChannelManager cm = ChannelManager.Instance;
+        int channelId = cm.HasUser(hashKey);
+        if (channelId < 0)
+        {
+            return;
+        }
+
+        Channel.Channel channel = cm.GetChannel(channelId);
+
+        // 파티 조회
+        PartyInfo? party = channel.GetPartyManager().GetPartyByPlayer(hashKey);
+        if (party == null)
+        {
+            Log.Warning("[GameServer] INTO_BOSS_RAID 파티 없음 HashKey={Key}", hashKey);
+            SendTo(peer, PacketSerializer.Serialize((ushort)PacketCode.INTO_BOSS_RAID,
+                new IntoBossRaidPacket { RaidId = packet.RaidId, IsSuccess = false }));
+            return;
+        }
+
+        // 파티장만 요청 가능
+        if (party.LeaderId != hashKey)
+        {
+            Log.Warning("[GameServer] INTO_BOSS_RAID 파티장 아님 HashKey={Key} LeaderId={LeaderId}", hashKey, party.LeaderId);
+            SendTo(peer, PacketSerializer.Serialize((ushort)PacketCode.INTO_BOSS_RAID,
+                new IntoBossRaidPacket { RaidId = packet.RaidId, IsSuccess = false }));
+            return;
+        }
+
+        // API로 접속 체크
+        List<string> userNames = new List<string>();
+        foreach (int memberId in party.PartyMemberIds)
+        {
+            userNames.Add(channel.GetPlayer(memberId).Nickname);
+        }
+
+        BossRaidResult? result = await RestApi.Instance.BossRaidAccesssAsync(userNames, 1);
+
+        // 입장 실패
+        if (result == null || result.BossId <= 0)
+        {
+            SendTo(peer,
+                PacketSerializer.Serialize((ushort)PacketCode.INTO_BOSS_RAID,
+                    new IntoBossRaidPacket { RaidId = -1, IsSuccess = false }));
+
+            Log.Debug("[GameServer] INTO_BOSS_RAID HashKey={Key} PartyId={PartyId} AssignedRaidMapId={RaidId} Failed", hashKey,
+                party.PartyId, -1);
+            return;
+        }
+
+        // 레이드 맵 할당 (미사용 맵 탐색 → 없으면 동적 생성)
+        int assignedRaidMapId = channel.GetOrCreateAvailableRaidMap();
+
+        // 진행중 맵으로 등록
+        channel.AddInstanceMap(assignedRaidMapId);
+
+        // 파티원 전체 레이드 맵으로 이동 + 각자에게 알림
+        foreach (int memberId in party.PartyMemberIds)
+        {
+            Player? memberPlayer = channel.GetPlayer(memberId);
+            if (memberPlayer == null)
+            {
+                continue;
+            }
+
+            // 이전 맵 캐싱 (레이드 종료 후 복귀용)
+            memberPlayer.PreviousMapId = memberPlayer.CurrentMapId;
+
+            int oldMapId = memberPlayer.CurrentMapId;
+            channel.ChangeMap(memberId, memberPlayer, assignedRaidMapId);
+
+            if (!sessions.TryGetValue(memberId, out NetPeer? memberPeer))
+            {
+                continue;
+            }
+
+            PlayerInfo memberInfo = ToPlayerInfo(memberPlayer);
+
+            // 기존 맵 유저들에게 퇴장 알림
+            ChangeMapPacket exitNotify = new() { MapId = oldMapId, IsAdd = false, Player = memberInfo };
+            BroadcastToMap(channelId, oldMapId, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, exitNotify));
+
+            // 새 맵 유저들에게 입장 알림 (본인 제외)
+            ChangeMapPacket enterNotify = new() { MapId = assignedRaidMapId, IsAdd = true, Player = memberInfo };
+            BroadcastToMap(channelId, assignedRaidMapId, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, enterNotify),
+                memberPeer);
+
+            // 본인에게 새 맵 플레이어 목록 전달
+            ChangeMapPacket response = new() { MapId = assignedRaidMapId };
+            AMap? raidMap = channel.GetMap(assignedRaidMapId);
+            if (raidMap != null)
+            {
+                foreach ((int uid, Player p) in raidMap.GetUsers())
+                {
+                    if (uid != memberId)
+                    {
+                        response.Players.Add(ToPlayerInfo(p));
+                    }
+                }
+            }
+
+            SendTo(memberPeer, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, response));
+
+            // 각 멤버에게 개별 토큰과 함께 레이드 이동 알림
+            string? memberToken = null;
+            result.Tokens?.TryGetValue(memberPlayer.Nickname, out memberToken);
+
+            SendTo(memberPeer,
+                PacketSerializer.Serialize((ushort)PacketCode.INTO_BOSS_RAID,
+                    new IntoBossRaidPacket
+                        { RaidId = assignedRaidMapId, IsSuccess = true, Session = result.SessionName, Token = memberToken }));
+        }
+
+        Log.Debug("[GameServer] INTO_BOSS_RAID HashKey={Key} PartyId={PartyId} AssignedRaidMapId={RaidId}", hashKey, party.PartyId,
+            assignedRaidMapId);
+    }
+
     // 채널 퇴장/연결 해제 시 파티 자동 탈퇴 처리
     private void HandlePartyLeaveOnExit(int channelId, int hashKey)
     {
@@ -886,24 +1218,24 @@ public class GameServer : ServerBase
                 PartyId = partyId.Value,
                 Type = PartyUpdateType.LEAVE,
                 LeaderId = remaining.LeaderId,
-                PlayerId = hashKey,
+                PlayerId = hashKey
             }
             : new UpdatePartyPacket
             {
                 PartyId = partyId.Value,
                 Type = PartyUpdateType.DELETE,
                 LeaderId = -1,
-                PlayerId = hashKey,
+                PlayerId = hashKey
             };
 
-        byte[] data = PacketSerializer.Serialize<UpdatePartyPacket>((ushort)PacketCode.UPDATE_PARTY, notify);
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.UPDATE_PARTY, notify);
         BroadcastToChannel(channelId, data);
     }
 
     private void SendError(NetPeer peer, ErrorCode code)
     {
-        ErrorPacket err = new ErrorPacket { Code = code };
-        byte[] data = PacketSerializer.Serialize<ErrorPacket>((ushort)PacketCode.ERROR, err);
+        ErrorPacket err = new() { Code = code };
+        byte[] data = PacketSerializer.Serialize((ushort)PacketCode.ERROR, err);
         SendTo(peer, data);
     }
 
diff --git a/MMOTestServer/MMOserver/Game/Party/PartyManager.cs b/MMOTestServer/MMOserver/Game/Party/PartyManager.cs
index 857e020..7dca0b9 100644
--- a/MMOTestServer/MMOserver/Game/Party/PartyManager.cs
+++ b/MMOTestServer/MMOserver/Game/Party/PartyManager.cs
@@ -15,10 +15,9 @@ public class PartyManager
     // 파티 생성
     public bool CreateParty(int leaderId, string partyName, out PartyInfo? party, List<int>? memeberIds = null)
     {
-        party = null;
-
         if (playerPartyMap.ContainsKey(leaderId))
         {
+            party = null;
             return false; // 이미 파티에 속해있음
         }
 
diff --git a/MMOTestServer/MMOserver/Game/Player.cs b/MMOTestServer/MMOserver/Game/Player.cs
index 6e1e4bf..da75369 100644
--- a/MMOTestServer/MMOserver/Game/Player.cs
+++ b/MMOTestServer/MMOserver/Game/Player.cs
@@ -104,4 +104,18 @@ public class Player
         get;
         set;
     }
+
+    // 현재 위치한 맵 ID
+    public int CurrentMapId
+    {
+        get;
+        set;
+    }
+
+    // 레이드 입장 전 이전 맵 ID (레이드 종료 후 복귀용, 서버 캐싱)
+    public int PreviousMapId
+    {
+        get;
+        set;
+    }
 }
diff --git a/MMOTestServer/MMOserver/Packet/PacketBody.cs b/MMOTestServer/MMOserver/Packet/PacketBody.cs
index a804474..e2ac3e9 100644
--- a/MMOTestServer/MMOserver/Packet/PacketBody.cs
+++ b/MMOTestServer/MMOserver/Packet/PacketBody.cs
@@ -278,9 +278,7 @@ public class PartyInfoData
     }
 }
 
-// INTO_CHANNEL
-// 클라->서버: 입장할 채널 ID
-// 서버->클라: 채널 내 나 이외 플레이어 목록
+// INTO_CHANNEL 클라->서버: 입장할 채널 ID / 서버->클라: 채널 내 나 이외 플레이어 목록
 [ProtoContract]
 public class IntoChannelPacket
 {
@@ -744,6 +742,103 @@ public class ChatPacket
         set;
     }
 }
+// ============================================================
+// 맵 이동
+// ============================================================
+
+// CHANGE_MAP (클라 -> 서버 & 서버 -> 클라)
+[ProtoContract]
+public class ChangeMapPacket
+{
+    [ProtoMember(1)]
+    public int MapId
+    {
+        get;
+        set;
+    }
+
+    // 새 맵의 기존 플레이어 목록 (이동한 본인에게 전달)
+    [ProtoMember(2)]
+    public List<PlayerInfo> Players
+    {
+        get;
+        set;
+    } = new List<PlayerInfo>();
+
+    // 입장(true) / 퇴장(false) - 기존 맵 플레이어들에게 전달
+    [ProtoMember(3)]
+    public bool IsAdd
+    {
+        get;
+        set;
+    }
+
+    // 이동한 플레이어 정보 - 기존 맵 플레이어들에게 전달
+    [ProtoMember(4)]
+    public PlayerInfo Player
+    {
+        get;
+        set;
+    }
+}
+
+// INTO_BOSS_RAID
+// 클라->서버: RaidId
+// 서버->클라: RaidId + IsSuccess (파티장에게 결과 전달)
+// 성공 시 파티원 전체에게 CHANGE_MAP 추가 전송
+[ProtoContract]
+public class IntoBossRaidPacket
+{
+    // 입장할 보스 레이드 맵 Id
+    [ProtoMember(1)]
+    public int RaidId
+    {
+        get;
+        set;
+    }
+
+    // 입장 성공 여부 (서버 -> 클라)
+    [ProtoMember(2)]
+    public bool IsSuccess
+    {
+        get;
+        set;
+    }
+
+    [ProtoMember(3)]
+    public string Token
+    {
+        get;
+        set;
+    }
+
+    [ProtoMember(4)]
+    public string Session
+    {
+        get;
+        set;
+    }
+}
+
+// PARTY_CHANGE_MAP (클라 -> 서버 전용)
+[ProtoContract]
+public class PartyChangeMapPacket
+{
+    [ProtoMember(1)]
+    public int MapId
+    {
+        get;
+        set;
+    }
+
+    [ProtoMember(2)]
+    public int PartyId
+    {
+        get;
+        set;
+    }
+}
+
 
 // ============================================================
 // 파티
diff --git a/MMOTestServer/MMOserver/Packet/PacketHeader.cs b/MMOTestServer/MMOserver/Packet/PacketHeader.cs
index 09b703d..44d012e 100644
--- a/MMOTestServer/MMOserver/Packet/PacketHeader.cs
+++ b/MMOTestServer/MMOserver/Packet/PacketHeader.cs
@@ -30,6 +30,15 @@ public enum PacketCode : ushort
     // 채널 나가기 (클라 -> 서버)
     EXIT_CHANNEL,
 
+    // 맵 이동
+    CHANGE_MAP,
+
+    // 단체로 맵 이동
+    PARTY_CHANGE_MAP,
+
+    // 파티장이 보스 레이드(인스턴스 던전) 입장 신청 (클라 -> 서버)
+    INTO_BOSS_RAID,
+
     // 플레이어 위치, 방향 (서버 -> 클라 \ 클라 -> 서버)
     TRANSFORM_PLAYER,
 
diff --git a/MMOTestServer/MMOserver/Program.cs b/MMOTestServer/MMOserver/Program.cs
index cfc08b5..3145cde 100644
--- a/MMOTestServer/MMOserver/Program.cs
+++ b/MMOTestServer/MMOserver/Program.cs
@@ -1,4 +1,5 @@
 using Microsoft.Extensions.Configuration;
+using MMOserver.Config;
 using MMOserver.Game;
 using MMOserver.RDB;
 using Serilog;
@@ -21,6 +22,8 @@ class Program
             .AddEnvironmentVariables()                                   // 도커 배포용
             .Build();
 
+        AppConfig.Initialize(config);
+
         // DB 연결
         // DbConnectionFactory dbFactory = new DbConnectionFactory(config);
 
@@ -34,7 +37,7 @@ class Program
 
         Log.Information("Write Log Started");
 
-        int port = 9500;
+        int port = AppConfig.Server.Port;
         string connectionString = "test";
         GameServer gameServer = new GameServer(port, connectionString);
 
diff --git a/MMOTestServer/MMOserver/config.json b/MMOTestServer/MMOserver/config.json
index 9b09330..569a4d8 100644
--- a/MMOTestServer/MMOserver/config.json
+++ b/MMOTestServer/MMOserver/config.json
@@ -1,4 +1,12 @@
-{
+{
+  "Server": {
+    "Port": 9500
+  },
+  "RestApi": {
+    "BaseUrl": "https://a301.api.tolelom.xyz",
+    "VerifyToken": "/api/internal/auth/verify",
+    "ApiKey": "017f15b28143fc67d2e5bed283c37d2da858b9f294990a5334238e055e3f5425"
+  },
   "Database": {
     "Host": "localhost",
     "Port": "0000",
diff --git a/MMOTestServer/ServerLib/Service/Session.cs b/MMOTestServer/ServerLib/Service/Session.cs
index 0d5afd5..7ad9cec 100644
--- a/MMOTestServer/ServerLib/Service/Session.cs
+++ b/MMOTestServer/ServerLib/Service/Session.cs
@@ -22,25 +22,29 @@ public class Session
         init;
     }
 
+    public string UserName
+    {
+        get;
+        set;
+    }
+
     public NetPeer Peer
     {
         get;
         set;
     }
 
-    // ─── 패킷 레이트 리미팅 ───────────────────────────
+    // 패킷 레이트 리미팅
     private int packetCount;
     private long windowStartTicks;
 
-    /// <summary>초당 허용 패킷 수</summary>
+    // 초당 허용 패킷 수
     public int MaxPacketsPerSecond { get; set; }
 
-    /// <summary>연속 초과 횟수</summary>
+    // 연속 초과 횟수
     public int RateLimitViolations { get; private set; }
 
-    /// <summary>
-    /// 패킷 수신 시 호출. 초당 제한 초과 시 true 반환.
-    /// </summary>
+    // 패킷 수신 시 호출. 초당 제한 초과 시 true 반환.
     public bool CheckRateLimit()
     {
         long now = Environment.TickCount64;
@@ -63,7 +67,7 @@ public class Session
         return false;
     }
 
-    /// <summary>위반 카운트 초기화</summary>
+    // 위반 카운트 초기화
     public void ResetViolations()
     {
         RateLimitViolations = 0;