Grand Theft Auto IV: The Complete Edition
54 sourced launch options for Grand Theft Auto IV: The Complete Edition on Steam ↗.
DeveloperRockstar North
PublisherRockstar Games
Released2020-03-24
EngineRAGE
-
-adapterCopyUses the specified screen adapterDisplaySafe -
-autoconfigCopyAutomatically adjusts the graphics settings depending on computer specificationsSafe -
-availablevidmemCopySets the amount of available physical video memoryDisplaySafe -
-benchmarkCopyLaunches the game in Benchmark mode and then quits itPerformanceDebug-DevExperimental -
-detailqualityCopySets the game's detail distance (0-99)DisplaySafe -
-disableimpostersCopyTurns off imposter rendering for vehiclesExperimental -
-dx10CopyForce 10.0 feature setDisplayPCGamingWiki Added Jul 19, 2026 Last checked Sep 27, 2026 Also documented for this game on ProtonDB · checked Nov 9, 2026Safe -
-forcehighqualitymirrorsCopyEnables 64-bit mirrorsDisplaySafe -
-forcer2vbCopyForces rendering to Vertex BufferExperimental -
-frameLimitCopyLimits the FPS to the refresh rate of the monitor being usedExperimental -
-framelockinwindowCopyForces framelock to work even in a windowExperimental -
-fullscreenCopyRun in fullscreen mode (Unreal Engine and Source games)- Effect
- Overrides a saved windowed preference. -full is the same option in Source.
DisplayUniversal Added Jun 27, 2026 Last checked Sep 27, 2026 Also documented for this game on PCGamingWiki · checked Sep 27, 2026Safe -
-fullspecaudioCopyForces high-end CPU audio footprintAudioSafe -
-gpucountCopyAllows to manually set the GPU count if query failsExperimental -
-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
DisplayPCGamingWiki Added Jun 27, 2026 Last checked Sep 27, 2026 Also documented for this game on PCGamingWiki · checked Sep 27, 2026Safe -
-helpCopyLists the available commandsExperimental -
-managedCopyUses D3D runtime managed resourcesExperimental -
-memrestrictCopyRestricts the amount of available memory the game can useExperimental -
-minspecaudioCopyForces low-end CPU audio footprintAudioSafe -
-no_3GBCopyDisables 3GB memory support on 32-bit OSes which have been set to allow games and applications to use that much memoryExperimental -
-noBlockOnLostFocusCopyPrevents the game from blocking window updates during focus lossExperimental -
-nomemrestrictCopyDisables memory restrictionsProton-DeckExperimental -
-nominimizeCopyDisables the ability to restore the game from minimize and altering resolutions (reduces system memory footprint)Experimental -
-noprecacheCopyDisables precaching of resourcesPerformanceSafe -
-norestrictionsCopyDisables restrictions on graphics settingsExperimental -
-noswapdelayCopyDisables sleep delay before Present (disables the hard present stalls fix)Experimental -
-notimefixCopyDisables Time FixExperimental -
-novblankCopyDisables vertical blanking for V-SyncProton-DeckExperimental -
-percentvidmemCopyPercentage of video memory to be made available for the gameProton-DeckDisplaySafe -
-refreshrateCopySets the refresh rate (values set must be supported by the monitor used)DisplaySafe -
-renderqualityCopyAdjusts anisotropic filtering (0-4)DisplaySafe -
-reserveCopySets the amount of memory to be used by other programsExperimental -
-reservedAppCopySets the amount of memory to be left available within application spaceExperimental -
-safemodeCopySets the game's graphics to the lowest setting possibleExperimental -
-shadowdensityCopyAdjusts night shadows (0-16)DisplaySafe -
-shadowqualityCopySets the shadow quality (0-4)DisplaySafe -
-stereoCopyEnables stereo audio supportDisplaySafe -
-texturequalityCopySets the game's texture quality (0-2)DisplaySafe -
-unmanagedCopyUses application managed resourcesExperimental -
-usedirectinputCopyAllows DirectInput support alongside XInput supportExperimental -
-viewdistanceCopySets the game's view distance (0-99)Experimental -
-widthCopySets the horizontal resolutionDisplaySafe -
-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
DisplayEpic Games Documentation Added Jun 27, 2026 Last checked Sep 27, 2026 Also documented for this game on PCGamingWiki · checked Sep 27, 2026Safe -
DXVK_ASYNC=1 %command%CopyEnable asynchronous pipeline compilation in DXVK builds patched with dxvk-asyncProton-Deck -
MANGOHUD=1CopyShow the MangoHud performance overlay (Linux)- Effect
- Draws FPS, frame timing and CPU/GPU load over Vulkan and OpenGL games. MangoHud runs the game, so %command% is what it runs.
- Example
mangohud %command%
Proton-Deck -
PROTON_ENABLE_NVAPI=1 %command%CopyEnable NVIDIA's NVAPI GPU support libraryProton-Deck -
PROTON_ENABLE_WAYLAND=1 %command%CopyUse Wine's experimental Wayland driver instead of the default X11 driver, in GE-Proton and Proton-CachyOS (Valve's Proton does not include it)Proton-Deck -
PROTON_NO_ESYNC=1 %command%CopyDisable eventfd-based synchronisation (Linux, Proton)- Effect
- Turns off in-process esync primitives. Worth trying for games that hang or crash under Proton.
Proton-DeckValve Proton Added Jul 8, 2026 Last checked Sep 13, 2026 Also documented for this game on ProtonDB · checked Sep 27, 2026Safe -
PROTON_USE_D9VK=1 %command%CopyUse DXVK for Direct3D 9 (obsolete) (Linux, Proton 4.x and earlier)- Effect
- Valve marks it obsoleted as of Proton 5.0 — DXVK became the default for d3d9, so on any current Proton this does nothing. In older versions it selected Vulkan-based DXVK over OpenGL-based wined3d.
Proton-DeckValve Proton Added Jul 8, 2026 Last checked Sep 13, 2026 Also documented for this game on ProtonDB · checked Sep 27, 2026Safe -
PROTON_USE_WAYLAND=1 %command%CopyAn alias of PROTON_ENABLE_WAYLAND: use Wine's experimental Wayland driver instead of the default X11 driver, in GE-Proton and Proton-CachyOS (Valve's Proton does not include it)Proton-DeckExperimental -
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-DeckDisplayValve Proton Added Jul 9, 2026 Last checked Sep 13, 2026 Also documented for this game on ProtonDB · checked Nov 9, 2026Safe -
WINE_FULLSCREEN_FSR=1 %command%CopyUpscale with AMD FidelityFX Super Resolution (FSR) through GE-Proton's fullscreen hack, in Vulkan games (DXVK and VKD3D-Proton included)Proton-DeckDisplay -
gamemoderun %command%CopyRun the game under Feral GameMode (Linux)- Effect
- Applies temporary host optimisations (CPU governor, I/O and process priority) for the game's lifetime, then restores them on exit. GameMode runs the game, so %command% is what it runs.
Proton-DeckFeral GameMode Added Jun 29, 2026 Last checked Sep 24, 2026 Also documented for this game on ProtonDB · checked Nov 9, 2026Safe -
mangohud %command%CopyShow the MangoHud performance overlay (Linux)- Effect
- Draws FPS, frame timing and CPU/GPU load over Vulkan and OpenGL games. MangoHud runs the game, so %command% is what it runs.
Proton-Deck
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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