MUnique · sven-n · Sep 24, 2026 · Sep 23, 2026 · Sep 23, 2026 · Sep 23, 2026
diff --git a/docs/Packets/C1-92-UpdateMiniGameState_by-server.md b/docs/Packets/C1-92-UpdateMiniGameState_by-server.md
@@ -34,4 +34,8 @@ The state of the mini games.
 | 10 | ChaosCastleClosed | The chaos castle game is closed. "Chaos Castle Closing (in x seconds)". |
 | 11 | ChaosCastleOpened | The chaos castle game is opened for entrance. "Chaos Castle Penetration (in x seconds)". |
 | 12 | ChaosCastleEnding | The chaos castle game is ending. "Chaos Castle Event ends (in x seconds)". |
-| 13 | ChaosCastleFinished | The chaos castle game is finished. Chaos Castle Event shuts down (in x seconds)". |
+| 13 | ChaosCastleFinished | The chaos castle game is finished. Chaos Castle Event shuts down (in x seconds)". |
+| 16 | DoppelgangerEntranceClosing | The entrance of the doppelganger event closes in 30 seconds. The client shows the countdown only on the doppelganger maps. |
+| 17 | DoppelgangerStarting | The doppelganger event starts in 30 seconds. The client shows the countdown only on the doppelganger maps. |
+| 18 | DoppelgangerIceWalkerCountdown | The ice walker has to be killed within 30 seconds. The client shows the countdown only on the doppelganger maps. |
+| 19 | DoppelgangerEnding | The doppelganger event ends in 30 seconds. The client shows the countdown only on the doppelganger maps. |
diff --git a/docs/Packets/C1-BF-0E-DoppelgangerEnterResult_by-server.md b/docs/Packets/C1-BF-0E-DoppelgangerEnterResult_by-server.md
@@ -0,0 +1,31 @@
+# C1 BF 0E - DoppelgangerEnterResult (by server)
+
+## Is sent when
+
+The player requested to enter the doppelganger event through the NPC Lugard.
+
+## Causes the following actions on the client side
+
+On failure, the client locks the enter button of the doppelganger entry dialog and may show a message.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   5   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xBF  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x0E  | Packet header - sub packet type identifier |
+| 4 | 1 | EnterResult |  | Result |
+
+### EnterResult Enum
+
+Result of the doppelganger enter request.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Success | The player entered the event. |
+| 1 | Failed | The player could not enter, e.g. because of a missing ticket item. The client locks the enter button without showing a message. |
+| 2 | AlreadyStarted | The event is already running or occupied by another party. The client shows "Battle has already commenced. You cannot enter.". |
+| 3 | PlayerKiller | Player killers are not allowed to enter. The client shows "You cannot enter if you are a 1st Stage Outlaw.". |
+| 4 | EntranceAvailable | The client unlocks the enter button of the doppelganger entry dialog. |
diff --git a/docs/Packets/C1-BF-0F-DoppelgangerMonsterPosition_by-server.md b/docs/Packets/C1-BF-0F-DoppelgangerMonsterPosition_by-server.md
@@ -0,0 +1,19 @@
+# C1 BF 0F - DoppelgangerMonsterPosition (by server)
+
+## Is sent when
+
+The position of the most advanced monster on the path to the magic circle changed during the doppelganger event.
+
+## Causes the following actions on the client side
+
+The client updates the monster progress bar of the doppelganger frame.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   5   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xBF  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x0F  | Packet header - sub packet type identifier |
+| 4 | 1 | Byte |  | Position; The position index on the path, between 0 (start) and 22 (magic circle). |
diff --git a/docs/Packets/C1-BF-10-DoppelgangerStateUpdate_by-server.md b/docs/Packets/C1-BF-10-DoppelgangerStateUpdate_by-server.md
@@ -0,0 +1,30 @@
+# C1 BF 10 - DoppelgangerStateUpdate (by server)
+
+## Is sent when
+
+The state of the doppelganger event changed.
+
+## Causes the following actions on the client side
+
+When the event starts (state Playing), the client shows the doppelganger frame and a message box with the failure conditions.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   5   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xBF  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x10  | Packet header - sub packet type identifier |
+| 4 | 1 | DoppelgangerState |  | State |
+
+### DoppelgangerState Enum
+
+The state of the doppelganger event.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Waiting | The event is waiting for the party members to enter. |
+| 1 | Ready | The entrance is closed and the event is about to start. |
+| 2 | Playing | The event is running. |
+| 3 | Ended | The event has ended. |
diff --git a/docs/Packets/C1-BF-11-DoppelgangerIceWalkerState_by-server.md b/docs/Packets/C1-BF-11-DoppelgangerIceWalkerState_by-server.md
@@ -0,0 +1,29 @@
+# C1 BF 11 - DoppelgangerIceWalkerState (by server)
+
+## Is sent when
+
+The ice walker appeared on or disappeared from the path during the doppelganger event.
+
+## Causes the following actions on the client side
+
+The client shows or hides the ice walker icon on the progress bar of the doppelganger frame.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   6   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xBF  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x11  | Packet header - sub packet type identifier |
+| 4 | 1 | IceWalkerState |  | State |
+| 5 | 1 | Byte |  | Position; The position index of the ice walker on the path, between 0 (start) and 22 (magic circle). |
+
+### IceWalkerState Enum
+
+The state of the ice walker.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Appeared | The ice walker is present at the given position. |
+| 1 | Disappeared | The ice walker was killed or disappeared. |
diff --git a/docs/Packets/C1-BF-12-DoppelgangerPlayInfo_by-server.md b/docs/Packets/C1-BF-12-DoppelgangerPlayInfo_by-server.md
@@ -0,0 +1,33 @@
+# C1 BF 12 - DoppelgangerPlayInfo (by server)
+
+## Is sent when
+
+Periodically (every second) while the doppelganger event is running.
+
+## Causes the following actions on the client side
+
+The client updates the remaining time and the positions of the party members on the progress bar of the doppelganger frame. Players which are not included are no longer shown.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |      | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xBF  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x12  | Packet header - sub packet type identifier |
+| 4 | 2 | ShortLittleEndian |  | RemainingSeconds |
+| 6 | 1 | Byte |  | PlayerCount |
+| 8 | PlayerPosition.Length * PlayerCount | Array of PlayerPosition |  | PlayerPositions |
+
+### PlayerPosition Structure
+
+The position of a player on the path.
+
+Length: 4 Bytes
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 2 | ShortLittleEndian |  | PlayerId |
+| 2 | 1 | Byte |  | MapNumber; The map number of the player. It is ignored by the client. |
+| 3 | 1 | Byte |  | Position; The position index of the player on the path, between 0 (start) and 22 (magic circle). |
diff --git a/docs/Packets/C1-BF-13-DoppelgangerResult_by-server.md b/docs/Packets/C1-BF-13-DoppelgangerResult_by-server.md
@@ -0,0 +1,30 @@
+# C1 BF 13 - DoppelgangerResult (by server)
+
+## Is sent when
+
+The doppelganger event ended for the player.
+
+## Causes the following actions on the client side
+
+The client stops the timer and the event music, and shows a message box with the result.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   12   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xBF  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x13  | Packet header - sub packet type identifier |
+| 4 | 1 | ResultType |  | Result |
+| 8 | 4 | IntegerLittleEndian |  | RewardExperience; The experience which the player got as reward. It is not shown by the client. The field is aligned to 4 bytes, because the client structure is not packed. |
+
+### ResultType Enum
+
+The result of the doppelganger event.
+
+| Value | Name | Description |
+|-------|------|-------------|
+| 0 | Success | The party successfully defended the magic circle. |
+| 1 | Failed | The player failed, e.g. because the character died or left the event map. |
+| 2 | MonstersReachedMagicCircle | The defense failed, because too many monsters reached the magic circle. |
diff --git a/docs/Packets/C1-BF-14-DoppelgangerMonsterGoal_by-server.md b/docs/Packets/C1-BF-14-DoppelgangerMonsterGoal_by-server.md
@@ -0,0 +1,20 @@
+# C1 BF 14 - DoppelgangerMonsterGoal (by server)
+
+## Is sent when
+
+A monster reached the magic circle during the doppelganger event.
+
+## Causes the following actions on the client side
+
+The client updates the counter of monsters which passed the magic circle.
+
+## Structure
+
+| Index | Length | Data Type | Value | Description |
+|-------|--------|-----------|-------|-------------|
+| 0 | 1 |   Byte   | 0xC1  | [Packet type](PacketTypes.md) |
+| 1 | 1 |    Byte   |   6   | Packet header - length of the packet |
+| 2 | 1 |    Byte   | 0xBF  | Packet header - packet type identifier |
+| 3 | 1 |    Byte   | 0x14  | Packet header - sub packet type identifier |
+| 4 | 1 | Byte |  | MaximumGoalCount; The number of monsters which may reach the magic circle until the event fails. |
+| 5 | 1 | Byte |  | GoalCount; The number of monsters which reached the magic circle. |
diff --git a/docs/Packets/ServerToClient.md b/docs/Packets/ServerToClient.md
@@ -198,6 +198,13 @@
   * [C1 BF 07 - IllusionTempleSkillEnd (by server)](C1-BF-07-IllusionTempleSkillEnd_by-server.md)
   * [C1 BF 08 - IllusionTempleHolyItemRelics (by server)](C1-BF-08-IllusionTempleHolyItemRelics_by-server.md)
   * [C1 BF 0A - ChainLightningHitInfo (by server)](C1-BF-0A-ChainLightningHitInfo_by-server.md)
+  * [C1 BF 0E - DoppelgangerEnterResult (by server)](C1-BF-0E-DoppelgangerEnterResult_by-server.md)
+  * [C1 BF 0F - DoppelgangerMonsterPosition (by server)](C1-BF-0F-DoppelgangerMonsterPosition_by-server.md)
+  * [C1 BF 10 - DoppelgangerStateUpdate (by server)](C1-BF-10-DoppelgangerStateUpdate_by-server.md)
+  * [C1 BF 11 - DoppelgangerIceWalkerState (by server)](C1-BF-11-DoppelgangerIceWalkerState_by-server.md)
+  * [C1 BF 12 - DoppelgangerPlayInfo (by server)](C1-BF-12-DoppelgangerPlayInfo_by-server.md)
+  * [C1 BF 13 - DoppelgangerResult (by server)](C1-BF-13-DoppelgangerResult_by-server.md)
+  * [C1 BF 14 - DoppelgangerMonsterGoal (by server)](C1-BF-14-DoppelgangerMonsterGoal_by-server.md)
   * [C1 BF 51 - MuHelperStatusUpdate (by server)](C1-BF-51-MuHelperStatusUpdate_by-server.md)
   * [C2 C0 - MessengerInitialization (by server)](C2-C0-MessengerInitialization_by-server.md)
   * [C1 C1 01 - FriendAdded (by server)](C1-C1-01-FriendAdded_by-server.md)