Grand Theft Auto V Legacy
27 community-verified launch options for Grand Theft Auto V Legacy on Steam ↗.
DeveloperRockstar North
PublisherRockstar Games
Released2015-04-13
EngineRAGE
-
-fullscreenCopyRun in fullscreen mode (Unreal Engine and Source games)- Effect
- Overrides a saved windowed preference. -full is the same option in Source.
DisplaySafe -
-dx11CopyUse the DirectX 11 renderer (Unreal Engine games)- Effect
- Selects DX11 as the RHI. Ignored by builds without a DX11 path.
DisplaySafe -
-highCopyRun the game at High process priority (Source engine games)- Effect
- Raises the OS scheduling priority of the game process. It does not add CPU capacity, so it helps only where something else is competing for the processor.
PerformanceSafe -
-windowedCopyRun in windowed mode (Unreal Engine and Source games)- Effect
- Unreal documents pairing it with an explicit resolution. In Source -window, -sw and -startwindowed are the same option.
- Example
-windowed -ResX=1920 -ResY=1080
DisplaySafe -
-threads 4CopySet the size of the engine thread pool (Source engine games)- Effect
- Takes a thread count; the default is 3. Setting it above the number of cores available does not help.
PerformanceSafe -
+set r_fullscreenCopyStart fullscreen or windowed (id Tech games)- Effect
- Takes 0 for windowed or 1 for full screen. Declared CVAR_ARCHIVE, so the value persists into later launches.
- Example
+set r_fullscreen 0
Experimental -
+set r_customwidthCopySet a custom horizontal resolution- Effect
- Overrides the width used when r_mode is -1. Without r_mode -1 the engine uses a preset mode and this value is ignored.
- Example
+set r_mode -1 +set r_customwidth 1920 +set r_customheight 1080
Experimental -
+set r_customheightCopySet a custom vertical resolution- Effect
- Overrides the height used when r_mode is -1. Without r_mode -1 the engine uses a preset mode and this value is ignored.
- Example
+set r_mode -1 +set r_customwidth 1920 +set r_customheight 1080
Experimental -
+set com_skipIntroVideoCopySkip the intro videos (id Tech 5 and later)- Effect
- Suppresses the startup videos on id Tech 5 and later (RAGE, DOOM 2016, DOOM 3 BFG). It does NOT exist in the earlier engines — on Quake III Arena, Wolfenstein 3D or the original DOOM it is simply ignored. id's own source spells it com_skipIntroVideos, plural.
- Example
+set com_skipIntroVideos 1
Experimental -
+set r_swapIntervalCopyControl vertical sync (id Tech games)- Effect
- Sets the OpenGL buffer-swap interval: 0 leaves VSync off, 1 syncs to the display refresh. Declared CVAR_ARCHIVE, so it persists.
- Example
+set r_swapInterval 1
Experimental -
-borderlessCopyRun in borderless windowed modeDisplaySafe -
-heightCopySet the window height in pixels (game-specific spelling)- Effect
- Forces the given vertical resolution. This is a per-game convention rather than an engine standard — Source uses -h, Unity uses -screen-height.
- Example
-height 1080
DisplaySafe -
-verifyCopyDebug-DevExperimental -
WINEDLLOVERRIDES=winedbg.exe=dCopyOverride how Wine loads specific Windows DLLsProton-DeckCaution -
PROTON_USE_WINED3D10=1CopyLegacy option: use OpenGL-based WineD3D for Direct3D 10 instead of DXVK (superseded by PROTON_USE_WINED3D)Proton-DeckDisplaySafe -
PROTON_USE_WINED3D=1 %command%CopyUse wined3d (OpenGL) instead of DXVK (Linux, Proton)- Effect
- Routes d3d11, d3d10 and d3d9 through OpenGL-based wined3d rather than Vulkan-based DXVK. Usually slower; a fallback where DXVK fails.
Proton-DeckDisplaySafe -
WINEFSYNC_SPINCOUNT=2000CopyHow many times fsync spins before sleeping — tuning value for futex-based synchronizationProton-DeckSafe -
-screen-widthCopyOverride the screen width (Unity games)- Effect
- Must be an integer from a resolution the game supports. Pair with -screen-height; alone it can leave a mismatched aspect ratio.
- Example
-screen-width 1920 -screen-height 1080
DisplaySafe -
-screen-heightCopyOverride the screen height (Unity games)- Effect
- Must be an integer from a resolution the game supports. Pair with -screen-width.
- Example
-screen-width 1920 -screen-height 1080
DisplaySafe -
-popupwindowCopyRun in a borderless window (Unity games)- Effect
- Creates the window as a dialog with no frame. Not supported on macOS.
DisplaySafe -
-window-modeCopyOverride fullscreen windowed mode (Unity games, Windows)- Effect
- Takes exclusive or borderless. Windows only. The flag alone does nothing — the value is required.
- Example
-window-mode borderless
DisplaySafe -
-force-openglCopyForce the legacy OpenGL renderer (Unity games, legacy builds)- Effect
- Windows only. Selects Unity's LEGACY OpenGL backend, not the core profile — use -force-glcore for that. Builds made with newer Unity versions may not carry the legacy backend at all, in which case this has no effect.
DisplaySafe -
-force-d3d11CopyForce the Direct3D 11 renderer (Unity games)- Effect
- Windows only.
DisplaySafe -
-force-d3d12CopyForce the Direct3D 12 renderer (Unity games)- Effect
- Windows only.
DisplaySafe -
-force-vulkanCopyForce the Vulkan renderer (Unity games)- Effect
- Useful where the default backend crashes or performs badly; ignored if the build has no Vulkan path.
DisplaySafe -
-force-low-power-deviceCopyUse the low-power GPU (Unity games, macOS)- Effect
- macOS only. Picks the integrated GPU over the discrete one, trading performance for battery life.
Safe -
-nobattleyeCopyNetworkCaution
How to apply a launch option on Steam
- Open Steam and go to your Library.
- Right-click the game and choose Properties.
- On the General tab, find the Launch Options field.
- Type or paste the option (e.g.
-windowed) into the field. To use several at once, separate them with spaces (e.g.-windowed -novid). - Close Properties. Steam saves automatically, and the option applies next time you launch the game.
To remove one, reopen the same field and delete the text. Options are game-specific; an option that helps one game may do nothing (or misbehave) in another.
Worth knowing: a launch option can break a game's rendering, reset local settings, or trip anti-cheat in multiplayer. Read the description first, add one at a time, and treat anything rated above Safe as a deliberate experiment.
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