Gate PackedGameDataTo behind AC check

* Add compat version for 17.3

* Add compat version for 17.3.1

docs/Server-configuration.md

@@ -25,20 +25,21 @@ Impostor has an Http Server that is used by recent versions of Among Us to conne
 
 Impostor has an Anticheat that makes it possible to kick cheaters from games automatically. Note that the anticheat is tuned on the vanilla version of the game, so client-side modifications could trigger the Anticheat if you're playing with them.
 
-| Key                           | Default   | Value                                                                                                                                                                                                               |
-|-------------------------------|-----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| **Enabled**                   | `true`    | Whether the anticheat should be enabled.                                                                                                                                                                            |
-| **BanIpFromGame**             | `true`    | When anticheat is enabled and a player is caught hacking, they will be kicked from the server. If this value is set to `true`, the player will be banned instead and will not be able to rejoin that specific game. |
-| **AllowCheatingHosts**        | `"Never"` | Configure whether hosts are allowed to cheat. "Never" forbids it, "Always" allows it. "IfRequested" allows hosts to cheat if they connect with the DisableServerAuthorityFlag set.                                  |
-| **EnableGameFlowChecks**      | `true`    | Enable checks that check if certain actions are done in the appropriate order or at the appropriate moment in the game. This includes changing cosmetics while in game or murdering too fast.                       |
-| **EnableInvalidObjectChecks** | `true`    | Enables checks that check if network objects are spawned properly. Disabling this option also implies disabling EnableRoleChecks.                                                                                   |
-| **EnableMustBeHostChecks**    | `true`    | Enables checks that check if players are the host before they can do actions that require them to be host of the game. This includes starting the game and spawning objects.                                        |
-| **EnableColorLimitChecks**    | `true`    | Enables checks that checks if players request colors that are already in use.                                                                                                                                       |
-| **EnableNameLimitChecks**     | `true`    | Enables checks that checks if player names have a length that is possible to set using the user interface.                                                                                                          |
-| **EnableOwnershipChecks**     | `true`    | Enables checks that check if players are allowed to perform a certain action on themself or another player.                                                                                                         |
-| **EnableRoleChecks**          | `true`    | Enables checks that check if players have the correct role when performing certain role abilities like venting or murdering.                                                                                        |
-| **EnableTargetChecks**        | `true`    | Enables checks that check if certain packets to everyone that should only have been sent to certain players or vice versa. This includes sending votes or network objects.                                          |
-| **ForbidProtocolExtensions**  | `true`    | If disabled allows players to send network packets that go beyond the network packets sent by the vanilla game. This is necessary for most mods that need all players to install it.                                |
+| Key                           | Default       | Value                                                                                                                                                                                                               |
+|-------------------------------|---------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **Enabled**                   | `true`        | Whether the anticheat should be enabled.                                                                                                                                                                            |
+| **BanIpFromGame**             | `true`        | When anticheat is enabled and a player is caught hacking, they will be kicked from the server. If this value is set to `true`, the player will be banned instead and will not be able to rejoin that specific game. |
+| **AllowCheatingHosts**        | `"Never"`     | Configure whether hosts are allowed to cheat. "Never" forbids it, "Always" allows it. "IfRequested" allows hosts to cheat if they connect with the DisableServerAuthorityFlag set.                                  |
+| **AllowHostOnlyExtensions**   | "IfRequested" | Configure whether [Host-Only extensions](https://github.com/Innersloth-LLC/AmongUsModdingInformation#host-only-mods) are allowed in all games ("Always"), +25 games only ("IfRequested") or by nobody ("Never")     |
+| **EnableGameFlowChecks**      | `true`        | Enable checks that check if certain actions are done in the appropriate order or at the appropriate moment in the game. This includes changing cosmetics while in game or murdering too fast.                       |
+| **EnableInvalidObjectChecks** | `true`        | Enables checks that check if network objects are spawned properly. Disabling this option also implies disabling EnableRoleChecks.                                                                                   |
+| **EnableMustBeHostChecks**    | `true`        | Enables checks that check if players are the host before they can do actions that require them to be host of the game. This includes starting the game and spawning objects.                                        |
+| **EnableColorLimitChecks**    | `true`        | Enables checks that checks if players request colors that are already in use.                                                                                                                                       |
+| **EnableNameLimitChecks**     | `true`        | Enables checks that checks if player names have a length that is possible to set using the user interface.                                                                                                          |
+| **EnableOwnershipChecks**     | `true`        | Enables checks that check if players are allowed to perform a certain action on themself or another player.                                                                                                         |
+| **EnableRoleChecks**          | `true`        | Enables checks that check if players have the correct role when performing certain role abilities like venting or murdering.                                                                                        |
+| **EnableTargetChecks**        | `true`        | Enables checks that check if certain packets to everyone that should only have been sent to certain players or vice versa. This includes sending votes or network objects.                                          |
+| **ForbidProtocolExtensions**  | `true`        | If disabled allows players to send network packets that go beyond the network packets sent by the vanilla game. This is necessary for most mods that need all players to install it.                                |
 
 ### Compatibility
 

src/Directory.Build.props

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
     <LangVersion>11</LangVersion>
-    <VersionPrefix>1.10.3</VersionPrefix>
+    <VersionPrefix>1.10.6</VersionPrefix>
     <VersionSuffix>dev</VersionSuffix>
     <EnforceCodeStyleInBuild Condition="$(MSBuildProjectName)!='Hazel'">true</EnforceCodeStyleInBuild>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>

src/Impostor.Api/CheatCategory.cs

@@ -5,6 +5,9 @@ public enum CheatCategory
     /// <summary>A packet used a part of the network protocol that is unknown to Impostor, like a custom RPC.</summary>
     ProtocolExtension,
 
+    /// <summary>A host-only mod extension is used outside of host-authoritive mode.</summary>
+    HostOnlyExtension,
+
     /// <summary>A packet was sent at an inappropriate moment.</summary>
     GameFlow,
 

src/Impostor.Api/Config/AntiCheatConfig.cs

@@ -10,6 +10,8 @@ namespace Impostor.Api.Config
 
         public CheatingHostMode AllowCheatingHosts { get; set; } = CheatingHostMode.Never;
 
+        public CheatingHostMode AllowHostOnlyExtensions { get; set; } = CheatingHostMode.IfRequested;
+
         public bool EnableGameFlowChecks { get; set; } = true;
 
         public bool EnableMustBeHostChecks { get; set; } = true;

src/Impostor.Api/Events/Game/Player/IPlayerChatEvent.cs

@@ -1,4 +1,4 @@
-namespace Impostor.Api.Events.Player
+namespace Impostor.Api.Events.Player
 {
     public interface IPlayerChatEvent : IPlayerEvent, IEventCancelable
     {
@@ -6,5 +6,12 @@
         ///     Gets the message sent by the player.
         /// </summary>
         string Message { get; }
+
+        /// <summary>
+        ///     Gets or sets a value indicating whether the message is sent to
+        ///     all players (true) or only to the host (false).
+        ///     To not send this message at all, cancel this event instead.
+        /// </summary>
+        bool SendToAllPlayers { get; set; }
     }
 }

src/Impostor.Api/Innersloth/Data/SpawnableObjects.json

@@ -5,7 +5,7 @@
   "4": "PlayerControl",
   "5": "MiraShipStatus",
   "6": "PolusShipStatus",
-  "7": "ShipStatus",
+  "7": "SkeldShipStatus",
   "8": "AirshipStatus",
   "9": "HideAndSeekManager",
   "10": "NormalGameManager",

src/Impostor.Api/Innersloth/Data/enums/GameOverReason.json

@@ -1,11 +1,11 @@
 {
-  "HumansByVote": 0,
-  "HumansByTask": 1,
-  "ImpostorByVote": 2,
-  "ImpostorByKill": 3,
-  "ImpostorBySabotage": 4,
+  "CrewmatesByVote": 0,
+  "CrewmatesByTask": 1,
+  "ImpostorsByVote": 2,
+  "ImpostorsByKill": 3,
+  "ImpostorsBySabotage": 4,
   "ImpostorDisconnect": 5,
-  "HumansDisconnect": 6,
-  "HideAndSeek_ByTimer": 7,
-  "HideAndSeek_ByKills": 8
+  "CrewmateDisconnect": 6,
+  "HideAndSeek_CrewmatesByTimer": 7,
+  "HideAndSeek_ImpostorsByKills": 8
 }

src/Impostor.Api/Innersloth/Data/enums/RoleTypes.json

@@ -9,5 +9,7 @@
   "ImpostorGhost": 7,
   "Noisemaker": 8,
   "Phantom": 9,
-  "Tracker": 10
+  "Tracker": 10,
+  "Detective": 12,
+  "Viper": 18
 }

src/Impostor.Api/Innersloth/Data/enums/RpcCalls.json

@@ -8,15 +8,15 @@
   "SetName": 6,
   "CheckColor": 7,
   "SetColor": 8,
-  "SetHat": 9,
-  "SetSkin": 10,
+  "SetHat_Deprecated": 9,
+  "SetSkin_Deprecated": 10,
   "ReportDeadBody": 11,
   "MurderPlayer": 12,
   "SendChat": 13,
   "StartMeeting": 14,
   "SetScanner": 15,
   "SendChatNote": 16,
-  "SetPet": 17,
+  "SetPet_Deprecated": 17,
   "SetStartCounter": 18,
   "EnterVent": 19,
   "ExitVent": 20,
@@ -33,8 +33,8 @@
   "SendQuickChat": 33,
   "BootFromVent": 34,
   "UpdateSystem": 35,
-  "SetVisor": 36,
-  "SetNamePlate": 37,
+  "SetVisor_Deprecated": 36,
+  "SetNamePlate_Deprecated": 37,
   "SetLevel": 38,
   "SetHatStr": 39,
   "SetSkinStr": 40,

src/Impostor.Api/Innersloth/Data/enums/StringNames.json

@@ -1379,6 +1379,9 @@
   "MissingGuardianEmailText": 3325,
   "AprilFoolsModeToggle": 3326,
   "LobbyChangeSettingNotification": 3327,
+  "LoadingBarLoading": 3328,
+  "LoadingBarGameStart": 3329,
+  "LoadingBarGameStartWaitingPlayers": 3330,
   "ImpostorsCategory": 3350,
   "RolesCategory": 3351,
   "MeetingsCategory": 3352,
@@ -1405,6 +1408,10 @@
   "StandardRulesPresetDescriptionHideAndSeek": 3373,
   "GameModeStandardSeek": 3374,
   "HostYouLabel": 3375,
+  "GamePresetsPopupTitle": 3376,
+  "GamePresetsPopupText": 3377,
+  "GamePresetsPopupContinue": 3378,
+  "GamePresetsPopupBack": 3379,
   "MiningPit": 3400,
   "Jungle": 3401,
   "BuildSandcastle": 3402,
@@ -1492,5 +1499,129 @@
   "QCLobbyClosing": 3547,
   "QCChangeCosmetics": 3548,
   "QCWaitingPlayers": 3549,
-  "QCLetsWaitPlayers": 3550
+  "QCLetsWaitPlayers": 3550,
+  "ServerLabel": 3551,
+  "JoinLobby": 3552,
+  "ChatLabel": 3553,
+  "ToolTipDefault": 3554,
+  "LevelLabel": 3555,
+  "NoneLowercaseLabel": 3556,
+  "ToolTipClassic": 3557,
+  "ToolTipHide": 3558,
+  "ToolTipMap": 3559,
+  "ToolTipCapacity": 3560,
+  "ToolTipLevel": 3561,
+  "ToolTipServer": 3562,
+  "ToolTipCrossplay": 3563,
+  "ToolTipNoCrossplay": 3564,
+  "ToolTipLanguage": 3565,
+  "ConfirmSettings": 3566,
+  "ConfirmSettingsTooltip": 3567,
+  "EnterCodeElipsis": 3568,
+  "ToolTipChatTab": 3569,
+  "DropshipsLabel": 3570,
+  "FiltersActive": 3571,
+  "ClearFilters": 3572,
+  "MoreLabel": 3573,
+  "HostNounEmpty": 3574,
+  "ToolTipSkeld": 3575,
+  "ToolTipMIRA": 3576,
+  "ToolTipPolus": 3577,
+  "ToolTipAirship": 3578,
+  "ToolTipFungle": 3579,
+  "FilterLow": 3580,
+  "FilterMed": 3581,
+  "FilterHigh": 3582,
+  "FilterVeryHigh": 3583,
+  "FilterLong": 3584,
+  "FilterNone": 3585,
+  "FilterPlayerLevel": 3586,
+  "RefreshLabel": 3587,
+  "JoinGameLabel": 3588,
+  "FilterClearText": 3589,
+  "MatchesFoundLabel": 3590,
+  "FilterGameTooltip": 3591,
+  "FilterMapTooltip": 3592,
+  "FilterImpostorTooltip": 3593,
+  "FilterRoleTooltip": 3594,
+  "FilterSpeedTooltip": 3595,
+  "FilterKillCDTooltip": 3596,
+  "FilterVotingTooltip": 3597,
+  "FilterVisualTaskTooltip": 3598,
+  "FilterAnonVotesTooltip": 3599,
+  "FilterConfirmEjectTooltip": 3600,
+  "FilterLevelTooltip": 3601,
+  "FilterCrossplayTooltip": 3602,
+  "FilterDefaultTooltip": 3603,
+  "FilterFlashlightTooltip": 3604,
+  "FilterHidingTimeTooltip": 3605,
+  "FilterFinalTimeTooltip": 3606,
+  "FilterMaxVentTooltip": 3607,
+  "FilterBeginner": 3608,
+  "FilterIntermediate": 3609,
+  "FilterExpert": 3610,
+  "FilterTag": 3611,
+  "FilterTagTooltip": 3612,
+  "TooltipTag": 3613,
+  "SelectedLabel": 3614,
+  "TooltipSpeedInfo": 3615,
+  "TooltipKillCDInfo": 3616,
+  "TooltipVotingInfo": 3617,
+  "TooptipHidingTimeInfo": 3618,
+  "TooltipFinalTimeInfo": 3619,
+  "FilterNoMaps": 3620,
+  "MaxFilters": 3621,
+  "XboxCommsMultiplayerError": 3700,
+  "XboxCommsUGError": 3701,
+  "XboxCommsCreateGameError": 3702,
+  "XboxCommsSearchError": 3703,
+  "XboxCommsJoinError": 3704,
+  "DetectiveRole": 4000,
+  "DetectiveAbility": 4001,
+  "DetectiveAbilityNotes": 4002,
+  "DetectiveBlurb": 4003,
+  "DetectiveBlurbMed": 4004,
+  "DetectiveBlurbLong": 4005,
+  "DetectiveNotesEmpty": 4006,
+  "DetectiveNotesFoundDead": 4007,
+  "DetectiveNotesSuspectInfo": 4008,
+  "DetectiveNearLocation": 4009,
+  "DetectiveNotesKiller": 4010,
+  "StatsDetectiveQuestioned": 4011,
+  "StatsDetectiveCasesFilled": 4012,
+  "DetectiveSuspectLimit": 4013,
+  "RolesHelp_Detective_01": 4014,
+  "RolesHelp_Detective_02": 4015,
+  "ViperRole": 4037,
+  "ViperBlurb": 4038,
+  "ViperBlurbMed": 4039,
+  "ViperBlurbLong": 4040,
+  "ViperDissolveTime": 4041,
+  "ViperAbility": 4042,
+  "StatsViperBodiesDissolved": 4043,
+  "RolesHelp_Viper_01": 4044,
+  "RolesHelp_Viper_02": 4045,
+  "QCWhereWasDead": 4060,
+  "QCInterrogateCrew": 4061,
+  "QCInterrogated": 4062,
+  "QCBodyDissolved": 4063,
+  "QCBodyVeryDissolved": 4064,
+  "QCBodyAlmostDissolved": 4065,
+  "QCDetectives": 4066,
+  "QCVipers": 4067,
+  "DetectiveNotesTitleVictim": 4068,
+  "DetectiveNotesTitleFoundDead": 4069,
+  "DetectiveNotesTitleKiller": 4070,
+  "DetectiveNotesTitleSuspects": 4071,
+  "DetectiveNotesTitleLocationsAtTimeOfDeath": 4072,
+  "DetectiveNotesPromptPreposition": 4073,
+  "DetectiveNotesPromptLocation": 4074,
+  "DetectiveNotesPromptImpostor": 4075,
+  "DetectiveNotesPromptSuspect": 4076,
+  "DetectiveNotesPrepositionIn": 4077,
+  "DetectiveNotesPrepositionBy": 4078,
+  "DetectiveNotesPrepositionMaybe": 4079,
+  "DetectiveNotesTitlePostIt": 4080,
+  "DetectiveNotesPostIt": 4081,
+  "DetectiveNotesSuspectNumber": 4082
 }

src/Impostor.Api/Innersloth/Data/info.json

@@ -1,5 +1,5 @@
 {
-  "dumpostorVersion": "1.0.1",
-  "gameVersion": "2024.10.29",
+  "dumpostorVersion": "1.0.1-dev",
+  "gameVersion": "2025.10.14",
   "platformType": "StandaloneItch"
 }

src/Impostor.Api/Innersloth/Data/maps/April/doors.json

@@ -1,93 +1,93 @@
 {
   "0": {
-    "room": "Cafeteria",
-    "position": {
-      "x": 6.3936,
-      "y": 1.33848
-    }
-  },
-  "1": {
-    "room": "Storage",
-    "position": {
-      "x": 5.268,
-      "y": -14.2884
-    }
-  },
-  "2": {
-    "room": "UpperEngine",
-    "position": {
-      "x": 16.930801,
-      "y": -2.1276002
-    }
-  },
-  "3": {
-    "room": "Cafeteria",
-    "position": {
-      "x": 0.708,
-      "y": -4.992
-    }
-  },
-  "4": {
-    "room": "LowerEngine",
-    "position": {
-      "x": 14.6808,
-      "y": -11.472
-    }
-  },
-  "5": {
-    "room": "UpperEngine",
-    "position": {
-      "x": 14.676002,
-      "y": 1.3406401
-    }
-  },
-  "6": {
-    "room": "Security",
-    "position": {
-      "x": 14.734801,
-      "y": -5.1417603
-    }
-  },
-  "7": {
-    "room": "Storage",
-    "position": {
-      "x": -1.1316001,
-      "y": -11.98128
-    }
-  },
-  "8": {
     "room": "Cafeteria",
     "position": {
       "x": -5.1432004,
       "y": 1.3355999
     }
   },
-  "9": {
+  "1": {
+    "room": "Cafeteria",
+    "position": {
+      "x": 0.708,
+      "y": -4.992
+    }
+  },
+  "2": {
+    "room": "Cafeteria",
+    "position": {
+      "x": 6.3936,
+      "y": 1.33848
+    }
+  },
+  "3": {
     "room": "Electrical",
     "position": {
       "x": 9.53616,
       "y": -13.416001
     }
   },
-  "10": {
-    "room": "MedBay",
+  "4": {
+    "room": "Storage",
     "position": {
-      "x": 9.1452,
-      "y": -0.4439999
+      "x": -1.1316001,
+      "y": -11.98128
     }
   },
-  "11": {
+  "5": {
+    "room": "Storage",
+    "position": {
+      "x": 0.70919997,
+      "y": -8.560801
+    }
+  },
+  "6": {
+    "room": "Storage",
+    "position": {
+      "x": 5.268,
+      "y": -14.2884
+    }
+  },
+  "7": {
+    "room": "LowerEngine",
+    "position": {
+      "x": 14.6808,
+      "y": -11.472
+    }
+  },
+  "8": {
     "room": "LowerEngine",
     "position": {
       "x": 16.930801,
       "y": -8.9664
     }
   },
-  "12": {
-    "room": "Storage",
+  "9": {
+    "room": "UpperEngine",
     "position": {
-      "x": 0.70919997,
-      "y": -8.560801
+      "x": 14.676002,
+      "y": 1.3406401
+    }
+  },
+  "10": {
+    "room": "UpperEngine",
+    "position": {
+      "x": 16.930801,
+      "y": -2.1276002
+    }
+  },
+  "11": {
+    "room": "Security",
+    "position": {
+      "x": 14.734801,
+      "y": -5.1417603
+    }
+  },
+  "12": {
+    "room": "MedBay",
+    "position": {
+      "x": 9.1452,
+      "y": -0.4439999
     }
   }
 }

src/Impostor.Api/Innersloth/Data/maps/April/spawn.json

@@ -1,11 +1,11 @@
 {
   "initialSpawnCenter": {
-    "x": -0.72,
-    "y": 0.62
+    "x": 0.87,
+    "y": 0.69
   },
   "meetingSpawnCenter": {
-    "x": -0.72,
-    "y": 0.62
+    "x": 0.87,
+    "y": 0.69
   },
   "meetingSpawnCenter2": {
     "x": 0,

src/Impostor.Api/Innersloth/Data/maps/April/tasks.json

@@ -476,5 +476,138 @@
         "usableDistance": 1
       }
     ]
+  },
+  "29": {
+    "type": "NormalPlayerTask",
+    "taskType": "VentCleaning",
+    "length": "Short",
+    "consoles": [
+      {
+        "id": 0,
+        "room": "Admin",
+        "position": {
+          "x": -2.544,
+          "y": -9.955201
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 2,
+        "room": "Cafeteria",
+        "position": {
+          "x": -4.2588,
+          "y": -0.27600002
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 13,
+        "room": "Nav",
+        "position": {
+          "x": -16.008001,
+          "y": -6.3840003
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 12,
+        "room": "Nav",
+        "position": {
+          "x": -16.008001,
+          "y": -3.1680002
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 7,
+        "room": "Weapons",
+        "position": {
+          "x": -8.820001,
+          "y": 3.3240001
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 10,
+        "room": "Shields",
+        "position": {
+          "x": -9.5232,
+          "y": -14.337601
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 1,
+        "room": "Hallway",
+        "position": {
+          "x": -9.384,
+          "y": -6.438
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 3,
+        "room": "Electrical",
+        "position": {
+          "x": 9.7764,
+          "y": -8.034
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 8,
+        "room": "Reactor",
+        "position": {
+          "x": 20.796001,
+          "y": -6.9528003
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 11,
+        "room": "Reactor",
+        "position": {
+          "x": 21.876,
+          "y": -3.0516002
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 9,
+        "room": "LowerEngine",
+        "position": {
+          "x": 15.2508,
+          "y": -13.656001
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 4,
+        "room": "UpperEngine",
+        "position": {
+          "x": 15.288,
+          "y": 2.52
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 5,
+        "room": "Security",
+        "position": {
+          "x": 12.534,
+          "y": -6.9492
+        },
+        "usableDistance": 1
+      },
+      {
+        "id": 6,
+        "room": "MedBay",
+        "position": {
+          "x": 10.608001,
+          "y": -4.176
+        },
+        "usableDistance": 1
+      }
+    ]
   }
 }

src/Impostor.Api/Innersloth/Data/maps/April/vents.json

@@ -1,6 +1,6 @@
 {
   "0": {
-    "name": "AdminVent",
+    "name": "AdminVent (1)",
     "position": {
       "x": -2.544,
       "y": -9.955201
@@ -10,7 +10,7 @@
     "right": 1
   },
   "1": {
-    "name": "BigYVent",
+    "name": "BigYVent (1)",
     "position": {
       "x": -9.384,
       "y": -6.438
@@ -20,7 +20,7 @@
     "right": 2
   },
   "2": {
-    "name": "CafeVent",
+    "name": "CafeVent (1)",
     "position": {
       "x": -4.2588,
       "y": -0.27600002
@@ -30,7 +30,7 @@
     "right": 1
   },
   "3": {
-    "name": "ElecVent",
+    "name": "ElecVent (1)",
     "position": {
       "x": 9.7764,
       "y": -8.034
@@ -40,7 +40,7 @@
     "right": 6
   },
   "4": {
-    "name": "LEngineVent",
+    "name": "LEngineVent (1)",
     "position": {
       "x": 15.288,
       "y": 2.52
@@ -50,7 +50,7 @@
     "right": null
   },
   "5": {
-    "name": "LifeSuppVent",
+    "name": "SecurityVent",
     "position": {
       "x": 12.534,
       "y": -6.9492
@@ -60,7 +60,7 @@
     "right": 3
   },
   "6": {
-    "name": "MedVent",
+    "name": "MedVent (1)",
     "position": {
       "x": 10.608001,
       "y": -4.176
@@ -70,7 +70,7 @@
     "right": 3
   },
   "7": {
-    "name": "WeaponsVent",
+    "name": "WeaponsVent (1)",
     "position": {
       "x": -8.820001,
       "y": 3.3240001
@@ -80,7 +80,7 @@
     "right": 12
   },
   "8": {
-    "name": "ReactorVent",
+    "name": "ReactorVent (1)",
     "position": {
       "x": 20.796001,
       "y": -6.9528003
@@ -90,7 +90,7 @@
     "right": null
   },
   "9": {
-    "name": "REngineVent",
+    "name": "REngineVent (1)",
     "position": {
       "x": 15.2508,
       "y": -13.656001
@@ -100,7 +100,7 @@
     "right": null
   },
   "10": {
-    "name": "ShieldsVent",
+    "name": "ShieldsVent (1)",
     "position": {
       "x": -9.5232,
       "y": -14.337601
@@ -110,7 +110,7 @@
     "right": null
   },
   "11": {
-    "name": "UpperReactorVent",
+    "name": "UpperReactorVent (1)",
     "position": {
       "x": 21.876,
       "y": -3.0516002
@@ -120,7 +120,7 @@
     "right": null
   },
   "12": {
-    "name": "NavVentNorth",
+    "name": "NavVentNorth (1)",
     "position": {
       "x": -16.008001,
       "y": -3.1680002
@@ -130,7 +130,7 @@
     "right": 7
   },
   "13": {
-    "name": "NavVentSouth",
+    "name": "NavVentSouth (1)",
     "position": {
       "x": -16.008001,
       "y": -6.3840003

src/Impostor.Api/Innersloth/GameOptions/HideNSeekGameOptions.cs

@@ -2,7 +2,7 @@ namespace Impostor.Api.Innersloth.GameOptions;
 
 public class HideNSeekGameOptions : IGameOptions
 {
-    public const int LatestVersion = 9;
+    public const int LatestVersion = 10;
 
     public HideNSeekGameOptions(byte version = LatestVersion)
     {

src/Impostor.Api/Innersloth/GameOptions/NormalGameOptions.cs

@@ -4,7 +4,7 @@ namespace Impostor.Api.Innersloth.GameOptions;
 
 public class NormalGameOptions : IGameOptions
 {
-    public const int LatestVersion = 9;
+    public const int LatestVersion = 10;
 
     public NormalGameOptions(byte version = LatestVersion)
     {

src/Impostor.Api/Innersloth/GameOptions/RoleOptions/DetectiveRoleOptions.cs

@@ -0,0 +1,29 @@
+namespace Impostor.Api.Innersloth.GameOptions.RoleOptions;
+
+public class DetectiveRoleOptions : IRoleOptions
+{
+    public DetectiveRoleOptions(byte version)
+    {
+        Version = version;
+    }
+
+    public byte Version { get; }
+
+    public RoleTypes Type => RoleTypes.Detective;
+
+    public byte DetectiveSuspectLimit { get; set; } = 3;
+
+    public static DetectiveRoleOptions Deserialize(IMessageReader reader, byte version)
+    {
+        var options = new DetectiveRoleOptions(version);
+
+        options.DetectiveSuspectLimit = reader.ReadByte();
+
+        return options;
+    }
+
+    public void Serialize(IMessageWriter writer)
+    {
+        writer.Write((byte)DetectiveSuspectLimit);
+    }
+}

src/Impostor.Api/Innersloth/GameOptions/RoleOptions/RoleOptionsCollection.cs

@@ -32,6 +32,8 @@ public class RoleOptionsCollection
                 RoleTypes.Noisemaker => NoisemakerRoleOptions.Deserialize(roleOptionsReader, Version),
                 RoleTypes.Phantom => PhantomRoleOptions.Deserialize(roleOptionsReader, Version),
                 RoleTypes.Tracker => TrackerRoleOptions.Deserialize(roleOptionsReader, Version),
+                RoleTypes.Detective => DetectiveRoleOptions.Deserialize(roleOptionsReader, Version),
+                RoleTypes.Viper => ViperRoleOptions.Deserialize(roleOptionsReader, Version),
                 _ => throw new ArgumentOutOfRangeException(nameof(roleType), roleType, null),
             };
 

src/Impostor.Api/Innersloth/GameOptions/RoleOptions/ViperRoleOptions.cs

@@ -0,0 +1,29 @@
+namespace Impostor.Api.Innersloth.GameOptions.RoleOptions;
+
+public class ViperRoleOptions : IRoleOptions
+{
+    public ViperRoleOptions(byte version)
+    {
+        Version = version;
+    }
+
+    public byte Version { get; }
+
+    public RoleTypes Type => RoleTypes.Viper;
+
+    public byte ViperDissolveTime { get; set; } = 15;
+
+    public static ViperRoleOptions Deserialize(IMessageReader reader, byte version)
+    {
+        var options = new ViperRoleOptions(version);
+
+        options.ViperDissolveTime = reader.ReadByte();
+
+        return options;
+    }
+
+    public void Serialize(IMessageWriter writer)
+    {
+        writer.Write((byte)ViperDissolveTime);
+    }
+}

src/Impostor.Api/Net/Messages/MessageFlags.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 
@@ -29,6 +29,7 @@ namespace Impostor.Api.Net.Messages
         public const byte QueryPlatformIds = 22;
         public const byte QueryLobbyInfo = 23;
         public const byte EndGameHostMigration = 24;
+        public const byte PackedGameDataTo = 26;
 
         private static readonly Dictionary<byte, string> FlagCache;
 
@@ -40,6 +41,11 @@ namespace Impostor.Api.Net.Messages
                 .ToDictionary(x => (byte)x.GetValue(null)!, y => y.Name);
         }
 
+        /// <summary>
+        /// Convert a MessageFlag to the corresponding string.
+        /// </summary>
+        /// <param name="flag">The MessageFlag to convert.</param>
+        /// <returns>A string corresponding with the value of flag.</returns>
         public static string FlagToString(byte flag)
         {
             return FlagCache.TryGetValue(flag, out var res) ? res : $"Unknown Flag {flag}";

src/Impostor.Server/Events/Game/Player/PlayerChatEvent.cs

@@ -1,4 +1,4 @@
-using Impostor.Api.Events.Player;
+using Impostor.Api.Events.Player;
 using Impostor.Api.Games;
 using Impostor.Api.Net;
 using Impostor.Api.Net.Inner.Objects;
@@ -24,5 +24,7 @@ namespace Impostor.Server.Events.Player
         public string Message { get; }
 
         public bool IsCancelled { get; set; }
+
+        public bool SendToAllPlayers { get; set; } = true;
     }
 }

src/Impostor.Server/Net/Client.cs

@@ -74,6 +74,12 @@ namespace Impostor.Server.Net
                 CheatCategory.Ownership => _antiCheatConfig.EnableOwnershipChecks,
                 CheatCategory.Role => _antiCheatConfig.EnableRoleChecks,
                 CheatCategory.Target => _antiCheatConfig.EnableTargetChecks,
+                CheatCategory.HostOnlyExtension => _antiCheatConfig.AllowHostOnlyExtensions switch {
+                    CheatingHostMode.Always => false,
+                    CheatingHostMode.IfRequested => !GameVersion.HasDisableServerAuthorityFlag,
+                    CheatingHostMode.Never => true,
+                    _ => true,
+                },
                 CheatCategory.Other => true,
                 _ => LogUnknownCategory(category),
             };
@@ -194,7 +200,7 @@ namespace Impostor.Server.Net
 
                 case MessageFlags.StartGame:
                 {
-                    if (!IsPacketAllowed(reader, true))
+                    if (!IsPacketAllowed(reader, true, flag))
                     {
                         return;
                     }
@@ -209,7 +215,7 @@ namespace Impostor.Server.Net
 
                 case MessageFlags.RemovePlayer:
                 {
-                    if (!IsPacketAllowed(reader, true))
+                    if (!IsPacketAllowed(reader, true, flag))
                     {
                         return;
                     }
@@ -226,7 +232,7 @@ namespace Impostor.Server.Net
                 case MessageFlags.GameData:
                 case MessageFlags.GameDataTo:
                 {
-                    if (!IsPacketAllowed(reader, false))
+                    if (!IsPacketAllowed(reader, false, flag))
                     {
                         return;
                     }
@@ -259,9 +265,60 @@ namespace Impostor.Server.Net
                     break;
                 }
 
+                case MessageFlags.PackedGameDataTo:
+                {
+                    // We're limiting this to hosts right now. If you have a use case for this for
+                    // players to use this feature, we're open to changing this.
+                    if (!IsPacketAllowed(reader, true, flag))
+                    {
+                        return;
+                    }
+
+                    if (await ReportCheatAsync(
+                        new CheatContext(MessageFlags.FlagToString(flag)),
+                        CheatCategory.HostOnlyExtension,
+                        "Client sent a PackedGameDataTo message"))
+                    {
+                        return;
+                    }
+
+                    while (reader.Position < reader.Length)
+                    {
+                        using var packed = reader.ReadMessage();
+
+                        if (packed.Tag != MessageFlags.GameDataTo)
+                        {
+                            _logger.LogWarning("PackedGameDataTo contained non-GameDataTo flag {0}.", packed.Tag);
+                            return;
+                        }
+
+                        if (packed.ReadInt32() != Player!.Game.Code)
+                        {
+                            _logger.LogWarning("PackedGameDataTo contained GameDataTo for the wrong game.");
+                            return;
+                        }
+
+                        var position = packed.Position;
+                        var verified = await Player.Game.HandleGameDataAsync(packed, Player, true);
+                        packed.Seek(position);
+
+                        if (!verified || Player == null)
+                        {
+                            return;
+                        }
+
+                        using var writer = MessageWriter.Get(messageType);
+                        var target = packed.ReadPackedInt32();
+                        packed.CopyTo(writer);
+                        await Player.Game.SendToAsync(writer, target);
+                    }
+
+                    break;
+                }
+
                 case MessageFlags.EndGame:
                 {
-                    if (!IsPacketAllowed(reader, true))
+                    if (!IsPacketAllowed(reader, true, flag))
                     {
                         return;
                     }
@@ -276,7 +333,7 @@ namespace Impostor.Server.Net
 
                 case MessageFlags.AlterGame:
                 {
-                    if (!IsPacketAllowed(reader, true))
+                    if (!IsPacketAllowed(reader, true, flag))
                     {
                         return;
                     }
@@ -297,7 +354,7 @@ namespace Impostor.Server.Net
 
                 case MessageFlags.KickPlayer:
                 {
-                    if (!IsPacketAllowed(reader, true))
+                    if (!IsPacketAllowed(reader, true, flag))
                     {
                         return;
                     }
@@ -344,6 +401,7 @@ namespace Impostor.Server.Net
 #if DEBUG
             if (flag != MessageFlags.GameData &&
                 flag != MessageFlags.GameDataTo &&
+                flag != MessageFlags.PackedGameDataTo &&
                 flag != MessageFlags.EndGame &&
                 reader.Position < reader.Length)
             {
@@ -377,7 +435,7 @@ namespace Impostor.Server.Net
             await _gameManager.OnClientDisconnectAsync(this);
         }
 
-        private bool IsPacketAllowed(IMessageReader message, bool hostOnly)
+        private bool IsPacketAllowed(IMessageReader message, bool hostOnly, byte flag)
         {
             if (Player == null)
             {
@@ -400,7 +458,11 @@ namespace Impostor.Server.Net
                     return true;
                 }
 
-                _logger.LogWarning("[{0}] Client sent packet only allowed by the host ({1}).", Id, game.HostId);
+                _logger.LogWarning(
+                    "[{0}] Client sent packet {1} only allowed by the host ({2}).",
+                    Id,
+                    MessageFlags.FlagToString(flag),
+                    game.HostId);
                 return false;
             }
 

src/Impostor.Server/Net/Inner/Objects/InnerPlayerControl.cs

@@ -1183,9 +1183,35 @@ namespace Impostor.Server.Net.Inner.Objects
         private async ValueTask<bool> HandleSendChat(ClientPlayer sender, string message)
         {
             var @event = new PlayerChatEvent(Game, sender, this, message);
+
+            // See https://github.com/Innersloth-LLC/AmongUsModdingInformation?tab=readme-ov-file#chat-commands
+            // Details not mentioned:
+            // - If the host sends a message that starts with /cmd, it is sent to all players
+            // - If the message starts with " /cmd" (note the space) it is sent to all players
+            if (Game.IsHostAuthoritive && !sender.IsHost && message.StartsWith("/cmd"))
+            {
+                @event.SendToAllPlayers = false;
+            }
+
             await _eventManager.CallAsync(@event);
 
-            return !@event.IsCancelled;
+            if (@event.IsCancelled)
+            {
+                return false;
+            }
+            else if (@event.SendToAllPlayers == false)
+            {
+                if (Game.Host != null)
+                {
+                    await SendChatToPlayerAsync(message, Game.Host.Character);
+                }
+
+                return false;
+            }
+            else
+            {
+                return true;
+            }
         }
 
         private async ValueTask HandleStartMeeting(byte targetId)

src/Impostor.Server/Net/Manager/ClientManager.cs

@@ -101,8 +101,8 @@ namespace Impostor.Server.Net.Manager
                 return;
             }
 
-            // Warn when players connect using the +25 flag that disables server authority. The host authority version
-            // of 2024.6.18 contains various bugs that break the game, so print a message if this mode is in use
+            // Warn when players connect using the +25 flag that disables server authority.
+            // This changes game behaviour, so we'd like to know if it's in use.
             if (clientVersion.HasDisableServerAuthorityFlag)
             {
                 if (!_compatibilityConfig.AllowHostAuthority)
@@ -112,7 +112,7 @@ namespace Impostor.Server.Net.Manager
                     return;
                 }
 
-                _logger.LogWarning("Player {Name} connected with server authority disabled, this may cause issues as there are known bugs in this mode. Please mention that this mode is in use when asking for support.", name);
+                _logger.LogInformation("Player {Name} connected with server authority disabled, please mention that this mode is in use when asking for support.", name);
             }
 
             if (name.Length > 10)

src/Impostor.Server/Net/Manager/CompatibilityManager.cs

@@ -28,7 +28,20 @@ internal class CompatibilityManager : ICompatibilityManager
         },
         new[]
         {
-            new GameVersion(2025, 4, 15), // 16.0.5 (2025-05-20)
+            new GameVersion(2025, 4, 15), // 16.0.5 (2025-05-20) & 16.1.0 (2025-06-10)
+        },
+        new[]
+        {
+            new GameVersion(2025, 7, 15), // 17.0.0 (2025-09-09)
+            new GameVersion(2025, 9, 12), // 17.0.1 (2025-10-14)
+            new GameVersion(2025, 10, 9), // 17.1   (2025-11-18)
+            new GameVersion(2025, 11, 6), // 17.1.1 (2025-12-03, mobile only)
+            new GameVersion(2025, 12, 8), // 17.1.2 (2025-12-11, mobile only)
+            new GameVersion(2025, 11, 5), // 17.2   (2026-02-17, build 6630, not a typo, Innersloth went backwards)
+            new GameVersion(2026, 1, 22), // 17.2   (2026-02-19, build 6686, hotfix)
+            new GameVersion(2026, 2, 2),  // 17.2.2 (2026-03-17, build 6768)
+            new GameVersion(2026, 1, 12), // 17.3   (2026-03-31, build 6803)
+            new GameVersion(2026, 3, 17), // 17.3.1 (2026-04-08, build 6841, mobile only)
         },
     };
 

src/Impostor.Server/Net/State/Game.Data.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
@@ -60,16 +61,14 @@ namespace Impostor.Server.Net.State
 
         private static readonly Dictionary<Type, uint> SpawnableObjectIds = SpawnableObjects.ToDictionary((i) => i.Value, (i) => i.Key);
 
-        private readonly List<InnerNetObject> _allObjects = new List<InnerNetObject>();
-
-        private readonly Dictionary<uint, InnerNetObject> _allObjectsFast = new Dictionary<uint, InnerNetObject>();
+        private readonly ConcurrentDictionary<uint, InnerNetObject> _allObjects = new ConcurrentDictionary<uint, InnerNetObject>();
 
         private uint _nextNetId = MinServerNetId;
 
         public T? FindObjectByNetId<T>(uint netId)
             where T : IInnerNetObject
         {
-            if (_allObjectsFast.TryGetValue(netId, out var obj))
+            if (_allObjects.TryGetValue(netId, out var obj))
             {
                 return (T)(IInnerNetObject)obj;
             }
@@ -104,7 +103,7 @@ namespace Impostor.Server.Net.State
                     case GameDataTag.DataFlag:
                     {
                         var netId = reader.ReadPackedUInt32();
-                        if (_allObjectsFast.TryGetValue(netId, out var obj))
+                        if (_allObjects.TryGetValue(netId, out var obj))
                         {
                             await obj.DeserializeAsync(sender, target, reader, false);
                         }
@@ -119,7 +118,7 @@ namespace Impostor.Server.Net.State
                     case GameDataTag.RpcFlag:
                     {
                         var netId = reader.ReadPackedUInt32();
-                        if (_allObjectsFast.TryGetValue(netId, out var obj))
+                        if (_allObjects.TryGetValue(netId, out var obj))
                         {
                             if (!await obj.HandleRpcAsync(sender, target, (RpcCalls)reader.ReadByte(), reader))
                             {
@@ -214,7 +213,7 @@ namespace Impostor.Server.Net.State
                     case GameDataTag.DespawnFlag:
                     {
                         var netId = reader.ReadPackedUInt32();
-                        if (_allObjectsFast.TryGetValue(netId, out var obj))
+                        if (_allObjects.TryGetValue(netId, out var obj))
                         {
                             if (sender.Client.Id != obj.OwnerId && !sender.IsHost)
                             {
@@ -468,7 +467,7 @@ namespace Impostor.Server.Net.State
 
         private async ValueTask SyncServerObjectsAsync(ClientPlayer sender)
         {
-            foreach (var obj in _allObjectsFast.Values)
+            foreach (var obj in _allObjects.Values)
             {
                 if (obj.OwnerId == ServerOwned)
                 {
@@ -533,25 +532,12 @@ namespace Impostor.Server.Net.State
 
         private bool AddNetObject(InnerNetObject obj)
         {
-            if (_allObjectsFast.ContainsKey(obj.NetId))
-            {
-                return false;
-            }
-
-            _allObjects.Add(obj);
-            _allObjectsFast.Add(obj.NetId, obj);
-            return true;
+            return _allObjects.TryAdd(obj.NetId, obj);
         }
 
         private void RemoveNetObject(InnerNetObject obj)
         {
-            var index = _allObjects.IndexOf(obj);
-            if (index > -1)
-            {
-                _allObjects.RemoveAt(index);
-            }
-
-            _allObjectsFast.Remove(obj.NetId);
+            _allObjects.TryRemove(obj.NetId, out _);
         }
     }
 }

src/Impostor.Tools.Proxy/Program.cs

@@ -34,6 +34,7 @@ namespace Impostor.Tools.Proxy
             { 13, "Redirect" },
             { 14, "ReselectServer" },
             { 16, "GetGameListV2" },
+            { 26, "PackedGameDataTo" },
         };
 
         private static IServiceProvider _serviceProvider;