MUnique · sven-n · Apr 3, 2026 · Mar 24, 2026 · Mar 24, 2026 · Mar 24, 2026
diff --git a/docs/Packets/C1-E5-GuildRelationshipChangeRequest_by-client.md b/docs/Packets/C1-E5-GuildRelationshipChangeRequest_by-client.md
@@ -17,7 +17,7 @@ The server sends a response with the result.
 | 2 | 1 |    Byte   | 0xE5  | Packet header - packet type identifier |
 | 3 | 1 | GuildRelationshipType |  | RelationshipType |
 | 4 | 1 | GuildRequestType |  | RequestType |
-| 5 | 2 | ShortLittleEndian |  | TargetPlayerId |
+| 5 | 2 | ShortBigEndian |  | TargetPlayerId |
 
 ### GuildRelationshipType Enum
 

diff --git a/docs/Packets/C1-E5-GuildRelationshipRequest_by-server.md b/docs/Packets/C1-E5-GuildRelationshipRequest_by-server.md
@@ -0,0 +1,40 @@
+# C1 E5 - GuildRelationshipRequest (by server)
+
+## Is sent when
+
+A guild master sent a relationship change request (alliance or hostility) and the server forwards this request to the target guild master.
+
+## Causes the following actions on the client side
+
+The target guild master (receiver of this message) sees the incoming request dialog.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   7   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xE5  | Packet header - packet type identifier |
+| 3 | 1 | GuildRelationshipType |  | RelationshipType |
+| 4 | 1 | GuildRelationshipRequestType |  | RequestType |
+| 5 | 2 | ShortBigEndian |  | SenderId |
+
+### GuildRelationshipType Enum
+
+Describes the relationship type between guilds.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Undefined | The undefined relationship type. |
+| 1 | Alliance | The alliance relationship type. |
+| 2 | Hostility | The hostility relationship type. |
+
+### GuildRelationshipRequestType Enum
+
+Describes the request type.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Undefined | The undefined request type. |
+| 1 | Join | The join type. |
+| 2 | Leave | The leave type. |
diff --git a/docs/Packets/C1-E6-GuildRelationshipChangeResponse_by-client.md b/docs/Packets/C1-E6-GuildRelationshipChangeResponse_by-client.md
@@ -18,7 +18,7 @@ The server sends a response back to the requester. If the guild master agreed, i
 | 3 | 1 | GuildRelationshipType |  | RelationshipType |
 | 4 | 1 | GuildRequestType |  | RequestType |
 | 5 | 1 | Boolean |  | Response |
-| 6 | 2 | ShortLittleEndian |  | TargetPlayerId |
+| 6 | 2 | ShortBigEndian |  | TargetPlayerId |
 
 ### GuildRelationshipType Enum
 

diff --git a/docs/Packets/C1-E6-GuildRelationshipChangeResult_by-server.md b/docs/Packets/C1-E6-GuildRelationshipChangeResult_by-server.md
@@ -0,0 +1,69 @@
+# C1 E6 - GuildRelationshipChangeResult (by server)
+
+## Is sent when
+
+The result of a guild relationship change request (alliance or hostility) is sent back to the requester.
+
+## Causes the following actions on the client side
+
+The requester sees the result of the relationship change.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   8   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xE6  | Packet header - packet type identifier |
+| 3 | 1 | GuildRelationshipType |  | RelationshipType |
+| 4 | 1 | GuildRelationshipRequestType |  | RequestType |
+| 5 | 1 | GuildRelationshipChangeResultType |  | Result |
+| 6 | 2 | ShortBigEndian |  | GuildMasterId |
+
+### GuildRelationshipChangeResultType Enum
+
+Defines the result of a guild relationship change request.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Failed | The request failed. |
+| 1 | Success | The request was successful. |
+| 16 | GuildNotFound | GUILD_ANS_NOTEXIST_GUILD: The guild does not exist. |
+| 16 | FailedDuringCastleSiege | GUILD_ANS_UNIONFAIL_BY_CASTLE: Alliance function will be restricted due to the Castle Siege. |
+| 17 | NoAuthorization | GUILD_ANS_NOTEXIST_PERMISSION: No authorization to perform this action. |
+| 18 | NotExistExtraStatus | GUILD_ANS_NOTEXIST_EXTRA_STATUS: The extra status does not exist. |
+| 19 | NotExistExtraType | GUILD_ANS_NOTEXIST_EXTRA_TYPE: The extra type does not exist. |
+| 21 | AlreadyInAlliance | GUILD_ANS_EXIST_RELATIONSHIP_UNION: The guild already has an alliance relationship. |
+| 22 | AlreadyInHostility | GUILD_ANS_EXIST_RELATIONSHIP_RIVAL: The guild already has a hostility relationship. |
+| 23 | GuildAllianceExists | GUILD_ANS_EXIST_UNION: A guild alliance already exists. |
+| 24 | HostileGuildExists | GUILD_ANS_EXIST_RIVAL: A hostile guild already exists. |
+| 25 | GuildAllianceDoesNotExist | GUILD_ANS_NOTEXIST_UNION: The guild alliance does not exist. |
+| 26 | HostileGuildDoesNotExist | GUILD_ANS_NOTEXIST_RIVAL: The hostile guild does not exist. |
+| 27 | NotMasterOfGuildAlliance | GUILD_ANS_NOT_UNION_MASTER: The player is not the master of the guild alliance. |
+| 28 | NotGuildRival | GUILD_ANS_NOT_GUILD_RIVAL: The guild is not a rival guild. |
+| 29 | IncompleteRequirementsToCreateAlliance | GUILD_ANS_CANNOT_BE_UNION_MASTER_GUILD: The requirements to create an alliance are incomplete. |
+| 30 | MaximumNumberOfGuildsInAllianceReached | GUILD_ANS_EXCEED_MAX_UNION_MEMBER: The maximum number of guilds in the alliance has been reached. |
+| 32 | RequestCancelled | GUILD_ANS_CANCEL_REQUEST: The request has been cancelled. |
+| 161 | AllianceMasterNotInGens | GUILD_ANS_UNION_MASTER_NOT_GENS: The alliance master is not in a Gens. |
+| 162 | GuildMasterNotInGens | GUILD_ANS_GUILD_MASTER_NOT_GENS: The guild master is not in a Gens. |
+| 163 | DifferentGens | GUILD_ANS_UNION_MASTER_DISAGREE_GENS: The alliance master and guild master belong to different Gens. |
+
+### GuildRelationshipType Enum
+
+Describes the relationship type between guilds.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Undefined | The undefined relationship type. |
+| 1 | Alliance | The alliance relationship type. |
+| 2 | Hostility | The hostility relationship type. |
+
+### GuildRelationshipRequestType Enum
+
+Describes the request type.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Undefined | The undefined request type. |
+| 1 | Join | The join type. |
+| 2 | Leave | The leave type. |
diff --git a/docs/Packets/C1-EB-01-RemoveAllianceGuildResult_by-server.md b/docs/Packets/C1-EB-01-RemoveAllianceGuildResult_by-server.md
@@ -0,0 +1,41 @@
+# C1 EB 01 - RemoveAllianceGuildResult (by server)
+
+## Is sent when
+
+A guild master sent a message to kick the guild from the alliance and it has been processed.
+
+## Causes the following actions on the client side
+
+The list of guilds is updated accordingly.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   7   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xEB  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x01  | Packet header - sub packet type identifier |
+| 4 | 1 | Boolean |  | Result |
+| 5 | 1 | GuildRelationshipRequestType |  | RequestType |
+| 6 | 1 | GuildRelationshipType |  | RelationshipType |
+
+### GuildRelationshipRequestType Enum
+
+Describes the request type.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Undefined | The undefined request type. |
+| 1 | Join | The join type. |
+| 2 | Leave | The leave type. |
+
+### GuildRelationshipType Enum
+
+Describes the relationship type between guilds.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Undefined | The undefined relationship type. |
+| 1 | Alliance | The alliance relationship type. |
+| 2 | Hostility | The hostility relationship type. |
diff --git a/docs/Packets/C1-F3-00-CharacterListExtended_by-server.md b/docs/Packets/C1-F3-00-CharacterListExtended_by-server.md
@@ -56,6 +56,7 @@ Defines the role of a guild member.
 |-------|------|-------------|
 | 0 | NormalMember | The member is a normal member without special rights. |
 | 32 | BattleMaster | The member is a battle master. |
+| 64 | AssistantMaster | The member is the assistant guild master. |
 | 128 | GuildMaster | The member is the guild master. |
 | 255 | Undefined | The character is not a member, therefore the role is undefined. |
 

diff --git a/docs/Packets/C1-F3-00-CharacterList_by-server.md b/docs/Packets/C1-F3-00-CharacterList_by-server.md
@@ -56,6 +56,7 @@ Defines the role of a guild member.
 |-------|------|-------------|
 | 0 | NormalMember | The member is a normal member without special rights. |
 | 32 | BattleMaster | The member is a battle master. |
+| 64 | AssistantMaster | The member is the assistant guild master. |
 | 128 | GuildMaster | The member is the guild master. |
 | 255 | Undefined | The character is not a member, therefore the role is undefined. |
 

diff --git a/docs/Packets/C2-52-GuildList_by-server.md b/docs/Packets/C2-52-GuildList_by-server.md
@@ -43,5 +43,6 @@ Defines the role of a guild member.
 |-------|------|-------------|
 | 0 | NormalMember | The member is a normal member without special rights. |
 | 32 | BattleMaster | The member is a battle master. |
+| 64 | AssistantMaster | The member is the assistant guild master. |
 | 128 | GuildMaster | The member is the guild master. |
 | 255 | Undefined | The character is not a member, therefore the role is undefined. |
diff --git a/docs/Packets/C2-65-AssignCharacterToGuild_by-server.md b/docs/Packets/C2-65-AssignCharacterToGuild_by-server.md
@@ -39,5 +39,6 @@ Defines the role of a guild member.
 |-------|------|-------------|
 | 0 | NormalMember | The member is a normal member without special rights. |
 | 32 | BattleMaster | The member is a battle master. |
+| 64 | AssistantMaster | The member is the assistant guild master. |
 | 128 | GuildMaster | The member is the guild master. |
 | 255 | Undefined | The character is not a member, therefore the role is undefined. |
diff --git a/docs/Packets/C2-E9-AllianceList_by-server.md b/docs/Packets/C2-E9-AllianceList_by-server.md
@@ -0,0 +1,34 @@
+# C2 E9 - AllianceList (by server)
+
+## Is sent when
+
+A player requested the alliance list dialog.
+
+## Causes the following actions on the client side
+
+The client shows the list of guilds in the alliance.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC2  | [Packet type](PacketTypes.md) |
+| 1 | 2 |    Short   |      | Packet header - length of the packet |
+| 3 | 1 |    Byte   | 0xE9  | Packet header - packet type identifier |
+| 4 | 1 | Byte |  | GuildCount |
+| 5 | 1 | Boolean |  | Success |
+| 6 | 1 | Byte |  | __RivalCount |
+| 7 | 1 | Byte |  | __UnionCount |
+| 8 | AllianceGuildEntry.Length * GuildCount | Array of AllianceGuildEntry |  | Guilds |
+
+### AllianceGuildEntry Structure
+
+Contains the data of one alliance guild entry.
+
+Length: 41 Bytes
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 | Byte |  | MemberCount |
+| 1 | 32 | Binary |  | Logo |
+| 33 | 8 | String |  | GuildName |
diff --git a/docs/Packets/ServerToClient.md b/docs/Packets/ServerToClient.md
@@ -175,6 +175,10 @@
   * [C1 D4 - ObjectWalked (by server)](C1-D4-ObjectWalked_by-server.md)
   * [C1 D4 - ObjectWalkedExtended (by server)](C1-D4-ObjectWalkedExtended_by-server.md)
   * [C1 DE 00 - CharacterClassCreationUnlock (by server)](C1-DE-00-CharacterClassCreationUnlock_by-server.md)
+  * [C1 E5 - GuildRelationshipRequest (by server)](C1-E5-GuildRelationshipRequest_by-server.md)
+  * [C1 E6 - GuildRelationshipChangeResult (by server)](C1-E6-GuildRelationshipChangeResult_by-server.md)
+  * [C2 E9 - AllianceList (by server)](C2-E9-AllianceList_by-server.md)
+  * [C1 EB 01 - RemoveAllianceGuildResult (by server)](C1-EB-01-RemoveAllianceGuildResult_by-server.md)
   * [C1 F1 00 - GameServerEntered (by server)](C1-F1-00-GameServerEntered_by-server.md)
   * [C1 F1 01 - LoginResponse (by server)](C1-F1-01-LoginResponse_by-server.md)
   * [C3 F1 02 - LogoutResponse (by server)](C3-F1-02-LogoutResponse_by-server.md)

diff --git a/src/Dapr/GuildServer.Host/GuildChangePublisher.cs b/src/Dapr/GuildServer.Host/GuildChangePublisher.cs
@@ -7,6 +7,7 @@ namespace MUnique.OpenMU.GuildServer.Host;
 using global::Dapr.Client;
 using Microsoft.Extensions.Logging;
 using MUnique.OpenMU.Interfaces;
+using MUnique.OpenMU.Persistence.EntityFramework.Model;
 using MUnique.OpenMU.ServerClients;
 
 /// <summary>
@@ -66,4 +67,43 @@ public async ValueTask AssignGuildToPlayerAsync(byte serverId, string characterN
             this._logger.LogError(ex, nameof(this.AssignGuildToPlayerAsync));
         }
     }
+
+    /// <inheritdoc />
+    public async ValueTask AllianceCreatedAsync(uint masterGuildId, uint memberGuildId)
+    {
+        try
+        {
+            await this._daprClient.InvokeMethodAsync("pubsub", nameof(IGameServer.AllianceCreatedAsync), (masterGuildId, memberGuildId)).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+            this._logger.LogError(ex, nameof(this.AllianceCreatedAsync));
+        }
+    }
+
+    /// <inheritdoc />
+    public async ValueTask AllianceDisbandedAsync(uint masterGuildId, uint memberGuildId)
+    {
+        try
+        {
+            await this._daprClient.InvokeMethodAsync("pubsub", nameof(IGameServer.AllianceDisbandedAsync), (masterGuildId, memberGuildId)).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+            this._logger.LogError(ex, nameof(this.AllianceDisbandedAsync));
+        }
+    }
+
+    /// <inheritdoc />
+    public async ValueTask GuildHostilityChangedAsync(uint guildIdA, IReadOnlyList<uint> allianceGuildIdsA, uint guildIdB, IReadOnlyList<uint> allianceGuildIdsB, bool created)
+    {
+        try
+        {
+            await this._daprClient.PublishEventAsync("pubsub", nameof(IGameServer.GuildHostilityChangedAsync), (guildIdA, allianceGuildIdsA, guildIdB, allianceGuildIdsB, created)).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+            this._logger.LogError(ex, nameof(this.GuildHostilityChangedAsync));
+        }
+    }
 }
diff --git a/src/Dapr/ServerClients/GameServer.cs b/src/Dapr/ServerClients/GameServer.cs
@@ -178,4 +178,22 @@ public async ValueTask<bool> BanPlayerAsync(string playerName)
     {
         return await this._client.InvokeMethodAsync<string, bool>(this._targetAppId, nameof(this.BanPlayerAsync), playerName).ConfigureAwait(false);
     }
+
+    /// <inheritdoc />
+    public async ValueTask AllianceCreatedAsync(uint masterGuildId, uint memberGuildId)
+    {
+        await this._client.InvokeMethodAsync(this._targetAppId, nameof(this.AllianceCreatedAsync), (masterGuildId, memberGuildId)).ConfigureAwait(false);
+    }
+
+    /// <inheritdoc />
+    public async ValueTask AllianceDisbandedAsync(uint masterGuildId, uint memberGuildId)
+    {
+        await this._client.InvokeMethodAsync(this._targetAppId, nameof(this.AllianceDisbandedAsync), (masterGuildId, memberGuildId)).ConfigureAwait(false);
+    }
+
+    /// <inheritdoc />
+    public async ValueTask GuildHostilityChangedAsync(uint guildIdA, IReadOnlyList<uint> allianceGuildIdsA, uint guildIdB, IReadOnlyList<uint> allianceGuildIdsB, bool created)
+    {
+        await this._client.InvokeMethodAsync(this._targetAppId, nameof(this.GuildHostilityChangedAsync), (guildIdA, allianceGuildIdsA, guildIdB, allianceGuildIdsB, created)).ConfigureAwait(false);
+    }
 }