Backrooms: Escape Together · handler “Backrooms Escape Together”

Version 3

Files 9

Hub.Handler.Version = 3; // Released at https://hub.splitscreen.me/ on Fri Oct 03 2025 05:02:43 GMT+0000 (Coordinated Universal Time).
Hub.Handler.Id = "J7qFPHSmH76LxBcJg";
Hub.Maintainer.Name = "birden";
Hub.Maintainer.Id = "rRycxSn253ZCjQy5C";

var answers1 = ["30", "60", "90", "120", "144", "0"];
Game.AddOption("Select the FPS cap.", "0 is for unlimited FPS", "fps", answers1);

Game.FileSymlinkCopyInstead = ["D3D12Core.dll", "tbb.dll", "tbbmalloc.dll"];
Game.FileSymlinkExclusions = ["steam_api64.dll", "steam_appid.txt", "EOSSDK-Win64-Shipping.dll"];
Game.DirSymlinkExclusions = ["Engine\\Binaries\\ThirdParty\\Steamworks\\Steamv157\\Win64", "BET\\Binaries\\Win64"];

Game.HandlerInterval = 500;
Game.SymlinkExe = false;
Game.SymlinkGame = true;
Game.SymlinkFolders = true;
Game.ExecutableName = "BETGame-Win64-Shipping.exe";
Game.SteamID = "2141730";
Game.GUID = "Backrooms Escape Together";
Game.GameName = "Backrooms Escape Together";
Game.MaxPlayers = 6;
Game.MaxPlayersOneMonitor = 6;
Game.BinariesFolder = "BET\\Binaries\\Win64";
Game.HideTaskbar = true;
Game.Hook.ForceFocus = false;
Game.Hook.ForceFocusWindowName = "Backrooms: Escape Together";
Game.Hook.DInputEnabled = false;
Game.Hook.XInputEnabled = true;
Game.Hook.XInputReroute = false;
Game.Hook.CustomDllEnabled = false;
Game.XInputPlusDll = ["xinput1_4.dll"];
Game.Description =
  "IMPORTANT: Start the game once and change some settings before trying split screen. Menus in vertical split arent good, but in-game is fine\n\nHost a lobby (DONT MAKE IT PRIVATE) on one instance and join with others through the lobby browser.\n\nIn case the mouse/cursor disappiers, unlock and lock input again.\n\nREAD: After all the instances have launched, resized and positioned correctly, alt+tab to the Nucleus Co-op screen than press the END key once to lock the input for all instances to have their own working cursor, keyboard and controllers. You need to left click each mouse to make the emulated cursors appear after locking the input. Press the END key again to unlock the input when you finish playing. You can also use CTRL+Q to close Nucleus and all its instances when the input is unlocked.";
Game.PauseBetweenProcessGrab = 5;
Game.PauseBetweenStarts = 10;

Game.CreateSteamAppIdByExe = true;

Game.RefreshWindowAfterStart = true;
Game.SetWindowHookStart = true;

Game.UseNucleusEnvironment = true;
Game.UserProfileConfigPath = "AppData\\Local\\BET\\Saved\\Config";
Game.UserProfileSavePath = "AppData\\Local\\BET\\Saved\\SaveGames";

//USS deprecated options:

Game.HookSetCursorPos = false;
Game.HookGetCursorPos = false;
Game.HookGetKeyState = false;
Game.HookGetAsyncKeyState = false;
Game.HookGetKeyboardState = false;
Game.HookFilterRawInput = false;
Game.HookFilterMouseMessages = false;
Game.HookUseLegacyInput = false;
Game.HookDontUpdateLegacyInMouseMsg = false;
Game.HookMouseVisibility = false;

Game.SendNormalMouseInput = false;
Game.SendNormalKeyboardInput = false;
Game.SendScrollWheel = false;
Game.ForwardRawKeyboardInput = false;
Game.ForwardRawMouseInput = false;
Game.HookReRegisterRawInput = false;
Game.HookReRegisterRawInputMouse = false;
Game.HookReRegisterRawInputKeyboard = false;
Game.DrawFakeMouseCursor = false;

//ProtoInput:

Game.SupportsMultipleKeyboardsAndMice = true;

Game.ProtoInput.InjectStartup = false;
Game.ProtoInput.InjectRuntime_RemoteLoadMethod = false;
Game.ProtoInput.InjectRuntime_EasyHookMethod = true;
Game.ProtoInput.InjectRuntime_EasyHookStealthMethod = false;

Game.LockInputAtStart = false;
Game.LockInputSuspendsExplorer = true;
Game.ProtoInput.FreezeExternalInputWhenInputNotLocked = true;
Game.LockInputToggleKey = 0x23;

Game.ProtoInput.RenameHandlesHook = false;
Game.ProtoInput.RenameHandles = [];
Game.ProtoInput.RenameNamedPipes = [];

Game.ProtoInput.RegisterRawInputHook = true;
Game.ProtoInput.GetRawInputDataHook = true;
Game.ProtoInput.MessageFilterHook = false;
Game.ProtoInput.GetCursorPosHook = true;
Game.ProtoInput.SetCursorPosHook = true;
Game.ProtoInput.GetKeyStateHook = false;
Game.ProtoInput.GetAsyncKeyStateHook = false;
Game.ProtoInput.GetKeyboardStateHook = false;
Game.ProtoInput.CursorVisibilityHook = true;
Game.ProtoInput.FocusHooks = true;
Game.ProtoInput.ClipCursorHook = true;
Game.ProtoInput.DrawFakeCursor = true;
Game.ProtoInput.ClipCursorHookCreatesFakeClip = true;

Game.ProtoInput.RawInputFilter = false;
Game.ProtoInput.MouseMoveFilter = false;
Game.ProtoInput.MouseActivateFilter = false;
Game.ProtoInput.WindowActivateFilter = false;
Game.ProtoInput.WindowActvateAppFilter = false;
Game.ProtoInput.MouseWheelFilter = false;
Game.ProtoInput.MouseButtonFilter = false;
Game.ProtoInput.KeyboardButtonFilter = false;

Game.ProtoInput.SendMouseWheelMessages = true;
Game.ProtoInput.SendMouseButtonMessages = true;
Game.ProtoInput.SendMouseMovementMessages = true;
Game.ProtoInput.SendKeyboardButtonMessages = true;
// Game.ProtoInput.XinputHook = true;
// Game.ProtoInput.UseOpenXinput = true;
// Game.ProtoInput.UseDinputRedirection = false;
// Game.ProtoInput.DinputDeviceHook = false;
// Game.ProtoInput.DinputHookAlsoHooksGetDeviceState = false;
// Game.ProtoInput.MultipleProtoControllers = true;

Game.ProtoInput.EnableFocusMessageLoop = false;
Game.ProtoInput.FocusLoopIntervalMilliseconds = 5000;
Game.ProtoInput.FocusLoop_WM_ACTIVATE = false;
// Game.ProtoInput.FocusLoop_WM_ACTIVATEAPP = false;
// Game.ProtoInput.FocusLoop_WM_NCACTIVATE = false;
// Game.ProtoInput.FocusLoop_WM_SETFOCUS = false;
// Game.ProtoInput.FocusLoop_WM_MOUSEACTIVATE = false;
Game.ProtoInput.BlockedMessages = [0x0008]; // Blocks WM_KILLFOCUS, WM_MOUSEHOVER and WM_MOUSELEAVE

Game.ProtoInput.OnInputLocked = function() {
  for (var i = 0; i < PlayerList.Count; i++) {
    var player = PlayerList[i];

    if (Context.IsKeyboardPlayer) {
      ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetKeyStateHookID);
      ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetAsyncKeyStateHookID);
      ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetKeyboardStateHookID);
    }
    ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetCursorPosHookID);
    ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.SetCursorPosHookID);
    ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.CursorVisibilityStateHookID);
    ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetRawInputDataHookID);
    ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.RegisterRawInputHookID);
    ProtoInput.InstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.MessageFilterHookID);

    //Avoid the mouse move filter unless absolutely necessary as it can massively affect performance if the game gets primary input from mouse move messages
    //ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseMoveFilterID);

    ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.RawInputFilterID);
    ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseActivateFilterID);
    ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.WindowActivateFilterID);
    ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.WindowActivateAppFilterID);
    ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseWheelFilterID);
    ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseButtonFilterID);
    ProtoInput.EnableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.KeyboardButtonFilterID);

    ProtoInput.StartFocusMessageLoop(player.ProtoInputInstanceHandle, 50, true, true, true, true, true);
    System.Threading.Thread.Sleep(1000);
    ProtoInput.StopFocusMessageLoop(player.ProtoInputInstanceHandle);

    ProtoInput.SetDrawFakeCursor(player.ProtoInputInstanceHandle, true);

    //ProtoInput.StartFocusMessageLoop(player.ProtoInputInstanceHandle, 5000, true, true, true, true, true);
  }
};

Game.ProtoInput.OnInputUnlocked = function() {
  for (var i = 0; i < PlayerList.Count; i++) {
    var player = PlayerList[i];

    if (Context.IsKeyboardPlayer) {
      ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetKeyStateHookID);
      ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetAsyncKeyStateHookID);
      ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetKeyboardStateHookID);
    }
    ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetCursorPosHookID);
    ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.SetCursorPosHookID);
    ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.CursorVisibilityStateHookID);
    ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.GetRawInputDataHookID);
    ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.RegisterRawInputHookID);
    ProtoInput.UninstallHook(player.ProtoInputInstanceHandle, ProtoInput.Values.MessageFilterHookID);

    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.RawInputFilterID);
    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseMoveFilterID);
    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseActivateFilterID);
    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.WindowActivateFilterID);
    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.WindowActivateAppFilterID);
    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseWheelFilterID);
    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.MouseButtonFilterID);
    ProtoInput.DisableMessageFilter(player.ProtoInputInstanceHandle, ProtoInput.Values.KeyboardButtonFilterID);

    ProtoInput.SetDrawFakeCursor(player.ProtoInputInstanceHandle, false);
  }
};

Game.Play = function() {
  var FPS = Context.Options["fps"];

  var Args = (Context.Args = " -windowed -ResX= " + Context.Width + " -ResY= " + Context.Height);

  Context.StartArguments = Args;

  Context.CopyScriptFolder(Context.GetFolder(Nucleus.Folder.InstancedGameFolder));

  var txtPath = Context.GetFolder(Nucleus.Folder.InstancedGameFolder) + "\\BET\\Binaries\\Win64\\nepice_settings\\NemirtingasEpicEmu.json";
  var dict = [
    Context.FindLineNumberInTextFile(txtPath, '      "EpicId":', Nucleus.SearchType.StartsWith) + '|      "EpicId": "831ec62c44424917a0fb315de2b5dc1' + Context.PlayerID + '",',
    Context.FindLineNumberInTextFile(txtPath, '      "Language":', Nucleus.SearchType.StartsWith) + '|      "Language": "' + Context.EpicLang + '",',
    Context.FindLineNumberInTextFile(txtPath, '      "UserName":', Nucleus.SearchType.StartsWith) + '|      "UserName": "' + Context.Nickname + '"'
  ];
  Context.ReplaceLinesInTextFile(txtPath, dict);

  var savePath = Context.GetFolder(Nucleus.Folder.InstancedGameFolder) + "\\Engine\\Binaries\\ThirdParty\\Steamworks\\Steamv157\\Win64\\steam_settings\\configs.user.ini";
  Context.ModifySaveFile(savePath, savePath, Nucleus.SaveType.INI, [
    new Nucleus.IniSaveInfo("user::general", "account_name", Context.Nickname),
    new Nucleus.IniSaveInfo("user::general", "account_steamid", Context.PlayerSteamID),
    new Nucleus.IniSaveInfo("user::general", "language", Context.SteamLang)
  ]);

  var savePath = Context.EnvironmentPlayer + Context.UserProfileConfigPath + "\\Windows\\GameUserSettings.ini";
  Context.ModifySaveFile(savePath, savePath, Nucleus.SaveType.INI, [
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "ResolutionSizeX", Context.Width),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "ResolutionSizeY", Context.Height),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "LastUserConfirmedResolutionSizeX", Context.Width),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "LastUserConfirmedResolutionSizeY", Context.Height),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "FullscreenMode", 2),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "LastConfirmedFullscreenMode", 2),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "PreferredFullscreenMode", 2),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "FrameRateLimit", FPS + ".000000"),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "MicrophoneVolume", "0.000000"),
    new Nucleus.IniSaveInfo("/Script/BETGame.BETGameUserSettings", "bPushToTalkEnabled", "True")
  ]);

  var ngincfg = Context.EnvironmentPlayer + Context.UserProfileConfigPath + "\\Windows\\Engine.ini";
  Context.ModifySaveFile(ngincfg, ngincfg, Nucleus.SaveType.INI, [new Nucleus.IniSaveInfo("/Script/Engine.LocalPlayer", "AspectRatioAxisConstraint", "AspectRatio_MaintainYFOV")]);

  if (Context.AspectRatioDecimal < 1.2) {
    Context.ModifySaveFile(ngincfg, ngincfg, Nucleus.SaveType.INI, [new Nucleus.IniSaveInfo("/Script/Engine.LocalPlayer", "AspectRatioAxisConstraint", "AspectRatio_MaintainXFOV")]);
  }
};