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Steam Tinker Launch — Env Vars & Program Arguments Reference

Source: sonic2kk/steamtinkerlaunch (single bash script, ~27,000 lines, v14.0.20250602).

1. Environment Variables Set by STL

1.1 Game Launch Time (most important)

Variable	Set When	Value
`MANGOHUD`	`USEMANGOHUD=1` + `MAHUVAR=1`	`1`
`MANGOHUD_CONFIG`	`USEMANGOHUD=1` + `MAHUARGS` non-empty	`$MAHUARGS`
`MANGOHUD_CONFIGFILE`	`USEMANGOHUD=1` + `MHIC` set	`$MHIC`
`LD_PRELOAD`	`USEMANGOHUD=1` + `LDPMAHU=1`	`$LD_PRELOAD $MAHUBIN`
`DXVK_FRAME_RATE`	`USEDXVKFRL=1`	`$DXVK_FPSLIMIT`
`DXVK_HDR`	`DXVKHDR=1`	`1`
`DXVK_CONFIG_FILE`	`DXVKCFG`/`DXDLSSCFG` set	`$STLDXVKCFG` or `$DXDLSSCFG`
`PROTON_ENABLE_NVAPI`	`USENVAPI=1`	`1`
`PROTON_HIDE_NVIDIA_GPU`	`USENVAPI=1`	`0`
`WINEDEBUG`	`USEWINEDEBUG` set	`$STLWINEDEBUG`
`WINEDLLOVERRIDES`	`USEWINEDLLOVERRIDES` set	`$WINEDLLOVERRIDES;$STLWINEDLLOVERRIDES`
`WINEESYNC`	`ENABLE_WINESYNC=1`	`0`
`WINEFSYNC`	`ENABLE_WINESYNC=1`	`0`
`WINEFSYNC_FUTEX2`	`ENABLE_WINESYNC=1`	`0`
`__NV_PRIME_RENDER_OFFLOAD`	`USEPRIMERUN=1`	`1`
`__VK_LAYER_NV_optimus`	`USEPRIMERUN=1`	`NVIDIA_only`
`__GLX_VENDOR_LIBRARY_NAME`	`USEPRIMERUN=1` → `nvidia` / `USEZINK=1` → `mesa`	`nvidia` or `mesa`
`VK_ICD_FILENAMES`	`USEPRIMERUN=1`	`/usr/share/vulkan/icd.d/nvidia_icd.json`
`MESA_LOADER_DRIVER_OVERRIDE`	`USEZINK=1`	`zink`
`GALLIUM_DRIVER`	`USEZINK=1`	`zink`
`SDL_VIDEODRIVER`	`SDLUSEWAYLAND=1`	`wayland`
`ENABLE_GAMESCOPE_WSI`	`USEGAMESCOPE=1` + `USEGAMESCOPEWSI=1`	`1`
`RADV_PERFTEST`	`STLRAD_PFTST` set	`$STLRAD_PFTST`
`ENABLE_<PP>`	`VULKANPOSTPROCESSOR` set (e.g. `ENABLE_FSR=1`)	`1`
`LC_ALL`	Always	`$LANG`
`PULSE_LATENCY_MSEC`	`STL_PULSE_LATENCY_MSEC` set	`$STL_PULSE_LATENCY_MSEC`
`DOTNET_ROOT`	Vortex mod manager	`$VTX_DOTNET_ROOT`
`DOTNET_BUNDLE_EXTRACT_BASE_DIR`	Vortex mod manager	`$VTX_DOTNET_ROOT`
`ONSTEAMDECK`	Detected Steam Deck	`1`
`STEAM_COMPAT_CLIENT_INSTALL_PATH`	`$SROOT` set	`$SROOT`
`STEAM_COMPAT_INSTALL_PATH`	`$MEGAMEDIR` / `$EFD` / `$STLDLDIR`	depending on game path
`STEAM_COMPAT_DATA_PATH`	`$STL_COMPAT_DATA_PATH` / `$DESTCODA`	wine prefix
`STEAM_COMPAT_APP_ID`	`$DPRS` / `$EUNID`	app id
`SteamAppId`	Same as above	`$STEAM_COMPAT_APP_ID`
`STEAM_COMPAT_TOOL_PATHS`	Custom SLR / tool paths	colon-joined paths
`STEAM_COMPAT_LIBRARY_PATHS`	Set before game launch
`STEAM_COMPAT_MOUNTS`	Set before game launch
`VRPGWINXIS`	Game window XID	`$GAMEWINXID`

1.2 VKD3D Configuration

Variable	Set When	Value
`VKD3D_CONFIG`	`USERAYTRACING=1` or `$STL_VKD3D_CONFIG`	`dxr11` or `$STL_VKD3D_CONFIG`
`VKD3D_DEBUG`	`$STL_VKD3D_DEBUG` set	`$STL_VKD3D_DEBUG`
`VKD3D_SHADER_DEBUG`	`$STL_VKD3D_SHADER_DEBUG` set	`$STL_VKD3D_SHADER_DEBUG`
`VKD3D_LOG_FILE`	`$STL_VKD3D_LOG_FILE` set	`$STL_VKD3D_LOG_FILE`
`VKD3D_VULKAN_DEVICE`	`$STL_VKD3D_VULKAN_DEVICE` set	`$STL_VKD3D_VULKAN_DEVICE`
`VKD3D_FILTER_DEVICE_NAME`	`$STL_VKD3D_FILTER_DEVICE_NAME` set	`$STL_VKD3D_FILTER_DEVICE_NAME`
`VKD3D_DISABLE_EXTENSIONS`	`$STL_VKD3D_DISABLE_EXTENSIONS` set	`$STL_VKD3D_DISABLE_EXTENSIONS`
`VKD3D_TEST_DEBUG`	`$STL_VKD3D_TEST_DEBUG` set	`$STL_VKD3D_TEST_DEBUG`
`VKD3D_TEST_FILTER`	`$STL_VKD3D_TEST_FILTER` set	`$STL_VKD3D_TEST_FILTER`
`VKD3D_TEST_EXCLUDE`	`$STL_VKD3D_TEST_EXCLUDE` set	`$STL_VKD3D_TEST_EXCLUDE`
`VKD3D_TEST_PLATFORM`	`$STL_VKD3D_TEST_PLATFORM` set	`$STL_VKD3D_TEST_PLATFORM`
`VKD3D_TEST_BUG`	`$STL_VKD3D_TEST_BUG` set	`$STL_VKD3D_TEST_BUG`
`VKD3D_PROFILE_PATH`	`$STL_VKD3D_PROFILE_PATH` set	`$STL_VKD3D_PROFILE_PATH`

1.3 Wine Configuration

Variable	Set When	Value
`WINE`	`extWine64Run`	`$RUNWINE`
`WINEARCH`	`extWine64Run`	`win64` or `$RUNWINEARCH`
`WINEPREFIX`	`extWine64Run`	`$GPFX` or `$GWFX`

2. Program Arguments Built

2.1 Command Chain (FINALSTARTCMD)

The final launch command is built by buildCustomCmdLaunch:

FINALSTARTCMD = [ GMR?, GSC?, GAMESCOPEARGSARR?, OBSC?, MAHUBIN?, --dlsym? ] + [SLRCMD?] + [EXTSTARTCMD] + [PROTSTARTCMD] + [GAMESTARTCMD] + [GAMEARGSARR]

2.2 Components

Component	Set By	Value
`GMR` (GameMode)	`USEGAMEMODERUN=1`	`$(command -v gamemoderun)`
`GSC` (GameScope)	`USEGAMESCOPE=1`	`$(command -v gamescope)`
`GAMESCOPEARGSARR`	`gameScopeArgs "$GAMESCOPE_ARGS"`	parsed args from `GAMESCOPE_ARGS`
`OBSC` (OBS capture)	`USEOBSCAP=1`	`$(command -v obs-gamecapture)`
`MAHUBIN` (MangoHud)	`USEMANGOHUD=1` + `LDPMAHU=0`	`$(command -v mangohud)`
`--dlsym`	`MAHUDLSYM=1`	literal flag appended to MangoHud
`SLRCMD` (Steam Linux Runtime)	`setSLRReap`	SLR command array
`EXTSTARTCMD`	`setBoxtronCmd`/`setRobertaCmd`/`setLuxtorpedaCmd`/`setLinuxCmd`	game-specific command

2.3 Proton Command (`PROTSTARTCMD`)

Built by setProtonCmd:

PROTSTARTCMD = ( "$RUNPROTON" "$WFEAR" ) + GAMESTARTCMD

Where:

$RUNPROTON = path to proton binary
$WFEAR = waitforexitandrun

2.4 Wine Command

Built by setWineCmd:

WINE=<proton-path>/bin/wine WINEARCH=win64 WINEDEBUG=<debug> WINEPREFIX=<prefix> <wine> <game-cmd>

2.5 Game Command (`GAMESTARTCMD`)

Windows games: $EFD/$GAMEEXE (game exe path)
Native games: $GAMERUN or user-specified binary
Custom program: $CUSTOMCMD (with optional $WICO for Windows binaries)
Luxtorpeda: "$LUXTORPEDACMD" "$LUXTORPEDAARGS" "$LUXEXE"
Boxtron: "$BOXTRONCMD" "$BOXTRONARGS" "$BOXTRONEXE"
Roberta: "$ROBERTACMD" "$ROBERTAARGS" "$ROBERTAEXE"

2.6 Game Arguments (`GAMEARGSARR`)

GAMEARGS from user config
HARDARGS from user config (hardcoded overrides)
SORTGARGS=1 → prepend Steam-provided args (SLOARGS)
GAMEARGS can be set to "none" (disabled)
-dx12 appended when USERAYTRACING=1

3. GameScope Arguments

Parsed from GAMESCOPE_ARGS config. Examples:

--width 1280 --height 720
--fs (fullscreen)
--expose-wayland
--immersive

Always ends with -- (required by GameScope).

4. MangoHud

Setting	Variable	Notes
Enable	`USEMANGOHUD=1`
Config string	`MAHUARGS`	Passed to `MANGOHUD_CONFIG`
Config file	`MHIC`	Passed to `MANGOHUD_CONFIGFILE`
Var mode	`MAHUVAR=1`	Sets `MANGOHUD=1` only
Binary preload	`LDPMAHU=1`	Sets `LD_PRELOAD=$MAHUBIN`
Dlsym mode	`MAHUDLSYM=1`	Appends `--dlsym` to MangoHud

5. DXVK

Setting	Variable	Notes
HDR	`DXVKHDR=1`	Sets `DXVK_HDR=1`
Frame limit	`USEDXVKFRL=1`	Sets `DXVK_FRAME_RATE=$DXVK_FPSLIMIT`
Config file	`DXVKCFG`/`DXDLSSCFG`	Sets `DXVK_CONFIG_FILE`
NVAPI	`USENVAPI=1`	Sets `PROTON_ENABLE_NVAPI=1`, `PROTON_HIDE_NVIDIA_GPU=0`

6. Vulkan Post-Processors

Processor	Env Var
FSR	`ENABLE_FSR=1`
DLSS	`USEDLSS=1`
VKBasalt	`ENABLE_VKBASALT=1`

7. GameMode

Setting	Variable	Notes
Enable	`USEGAMEMODERUN=1`	Prepends `gamemoderun` to launch

8. Custom Program (CustomCMD)

Setting	Variable	Notes
Enable	`CUSTOMCMD` set	User-specified executable
Force Wine	`CUSTOMCMDFORCEWIN=1`	Force Wine/Proton wrapper
External progs	`EXTPROGS_CUSTOMCMD=1`	Apply MangoHud/GameScope to custom program
Fork	`FORK_CUSTOMCMD=1`	Fork process in background
Only custom	`ONLY_CUSTOMCMD=1`	Skip game, run only custom command
Wait	`WAITFORCUSTOMCMD=N`	Wait N seconds for custom command to start
Use SLR	`CUSTOMCMD_USESLR=1`	Use Steam Linux Runtime with custom command

9. Conty (Containerized Wine)

Setting	Variable	Notes
Enable	`USECONTY=1`
Binary	`RUNCONTY`	`$CONTYDLDIR/$CONTY`
Pick Conty	`PICKCONT`	user-specified Conty binary
Custom Conty	`CUSTCONTY`	user-specified Conty binary

Launches as: "$RUNCONTY" "${RUNCMD[@]}"

10. Mod Organizer 2 (MO2)

Setting	Variable	Notes
Mode	`MO2MODE`	`disabled` / `enabled` / `auto`
MO2 exe	`GMO2EXE`	Path to MO2 executable
MO2 path	`MO2PATH`	Path to MO2 installation

Launches MO2 with: STEAM_COMPAT_CLIENT_INSTALL_PATH=... STEAM_COMPAT_DATA_PATH=... $RUNPROTON run ${MO}.exe -i $MYINST $1

11. Vortex Mod Manager

Setting	Variable	Notes
Enable	`USEVORTEX=1`
Setup	`VORTEXSETUP`
Download dir	`VORTEXDLDIR`
.NET root	`VTX_DOTNET_ROOT`	Sets `DOTNET_ROOT` and `DOTNET_BUNDLE_EXTRACT_BASE_DIR`
VPath	`VSPATH`	`$VORTEXDLDIR/$VORTEXSETUP`

12. Shader Management

Setting	Variable	Notes
Shader dir	`SHADDESTDIR`	Default shader destination
Repos	`SHADERREPOS`	Shader repository URLs
Update	`SHADERUPDATE`	`1` = update shaders on launch

13. Network/Internet Blocking

Setting	Variable	Notes
Block internet	`BLOCKINTERNET=1`	Uses `unshare -n -r` to namespace
`BLOCKCMD`	`unshare`
`BLOCKARGS`	`-n -r`	Network + user namespace

14. Wine Debug

Setting	Variable	Notes
Debug channels	`STLWINEDEBUG`	e.g. `+relay,+timestamp`
DLL overrides	`STLWINEDLLOVERRIDES`	e.g. `dxvk=n:d3d11`

15. Game Window Management

Setting	Variable	Notes
Window name	`GAMEWINDOW`	X11 window name to target
Window XID	`GAMEWINXID`	X11 window XID
`VRPGWINXIS`	`$GAMEWINXID`	Used for VR games

16. Steam Deck Specific

Setting	Variable	Value
Detected	`ONSTEAMDECK`	`1`
Was update	`STEAMDECKWASUPDATE`	`0`
Did install	`STEAMDECKDIDINSTALL`	`1`
Steam Run	`STEAMDECKSTEAMRUN`	`0`

17. Game Files

Setting	Variable	Notes
Game dir	`$EFD`	Executable file directory
Game exe	`$GAMEEXE`	Game executable name
Game path	`$GP`	Absolute game path
Mega dir	`$MEGAMEDIR`	Game install directory

18. Proton

Setting	Variable	Notes
Use proton	`USEPROTON`	Proton version string
Proton bin	`$PROTBIN`	Path to proton binary
Compat data	`$STL_COMPAT_DATA_PATH`	Wine prefix path
PFX	`$GPFX`	`$STL_COMPAT_DATA_PATH/pfx`
Run proton	`RUNPROTON`	Full proton command
Run wine server	`RUNWINESERVER`	`run_wine_server` path
Proton version	`PROTONVERSION`	Version string

19. Winetricks

Setting	Variable	Notes
Run winetricks	`RUNWINETRICKS`	Winetricks commands to run
Winetricks bin	`$SYSWINETRICKS`	`winetricks` path

20. GDB Debugging

Setting	Variable	Notes
GDB run	`GDBGAMERUN`	GDB script path
GDB script	`GDBRUN`	GDB script
Run GDB	`RUN_GDB=1`	Enable GDB

21. VR

Setting	Variable	Notes
VR init	`VRINITLOCK`	VR initialization lock file
VR init result	`VRINITRESULT`	VR init result file

22. One-Time Run

Setting	Variable	Notes
One-time run	`USEONERT=1`
Custom path	`OPCUSTPATH`	Custom program path

23. Standalone Proton

Setting	Variable	Notes
Use standalone	`USESTANDALONEPROTON=1`
Standalone proton	`$STLPROTDIR`	STL-managed proton dir

24. GameScope Args

Setting	Variable	Notes
GameScope args	`GAMESCOPE_ARGS`	Space-separated args
MangoApp	`USEMANGOAPP=1`	Uses MangoHud App (Steam Deck)

25. DXVK HUD

Setting	Variable	Notes
DXVK HUD	`DXVK_HUD`	HUD elements to show

26. Game Scope

Setting	Variable	Notes
GameScope	`USEGAMESCOPE=1`	Enable GameScope
GameScope WSI	`USEGAMESCOPEWSI=1`	Enable GameScope WSI
GameScope fix	`FIXGAMESCOPE=1`	Fix GameScope on Steam Deck

27. OBS Capture

Setting	Variable	Notes
OBS capture	`USEOBSCAP=1`	Enable OBS game capture

28. Vulkan Post Processor

Setting	Variable	Notes
Vulkan PP	`VULKANPOSTPROCESSOR`	Post-processor name

29. SDL Wayland

Setting	Variable	Notes
SDL Wayland	`SDLUSEWAYLAND=1`	Force SDL to use Wayland

30. Wine DPI Scaling

Setting	Variable	Notes
Wine DPI	`WINEDPI`	DPI scaling value

3. GameScope CLI Arguments

Parsed from GAMESCOPE_ARGS config string. Always ends with --.

3.1 General Options

Flag	Description	Type
`-W <width>`	Show resolution width	number
`-H <height>`	Show resolution height	number
`-w <width>`	Internal resolution width (what games see)	number
`-h <height>`	Internal resolution height	number
`-r <fps>`	Focused frame rate limit	30/60/90/120/unlimited
`-o <fps>`	Unfocused frame rate limit	30/60/90/120/unlimited
`-f`	Fullscreen	bool
`-b`	Borderless window	bool
`-e`	Steam integration (fixes peripheral bugs)	bool
`--force-windows-fullscreen`	Force windows fullscreen inside nested display	bool
`--force-grab-cursor`	Keep cursor inside GameScope nested display	bool
`-g`	Force grab keyboard	bool
`--force-orientation <dir>`	Orientation (left/right/normal/upsidedown)	dropdown
`--cursor <path>`	Custom cursor image	file picker
`-s <float>`	Mouse sensitivity	number (default 1.0)

3.2 Filtering & Scaling Options

New filter mode (GameScope ≥3.11):

Flag	Description	Type
`-F <filter>`	Filter (none/linear/nearest/fsr/nis/pixel)	dropdown
`-S <scale>`	Scale mode (none/auto/integer/fit/fill/stretch)	dropdown

Legacy filter mode (older GameScope):

Flag	Description	Type
`-i`	Integer scaling	bool
`-n`	Nearest neighbor filtering	bool
`-U <fsr>`	FSR 1.0 upscaling	bool
`-Y`	NVIDIA Image Scaling v1.0.3	bool
`--fsr-sharpness <int>`	FSR sharpness (0-20, default 2)	number
`-m <int>`	Max scale factor (Steam Deck defaults to 2)	number

3.3 HDR Options

Flag	Description	Type
`--hdr-enabled`	Enable HDR	bool
`--hdr-wide-gammut-for-sdr`	Wide gammut for SDR	bool
`--hdr-sdr-content-nits`	SDR content nits (default 400)	number
`--hdr-itm-enable`	Inverse tone mapping enabled	bool
`--hdr-itm-sdr-nits`	ITM SDR nits (0-1000, default 100)	number
`--hdr-itm-target-nits`	ITM target nits (0-10000, default 1000)	number

3.4 VR Options

Flag	Description	Type
`--openvr`	Enable OpenVR	bool
`--vr-overlay-explicit-name <str>`	SteamVR explicit name	text
`--vr-overlay-default-name <str>`	SteamVR default name	text
`--vr-overlay-key <str>`	SteamVR overlay key string	text
`--vr-overlay-icon <path>`	SteamVR overlay icon	file picker
`--vr-overlay-show-immediately`	Show VR overlay immediately	bool
`--vr-overlay-enable-control-bar`	Enable SteamVR control bar	bool
`--vr-overlay-enable-control-bar-keyboard`	Enable keyboard button on control bar	bool
`--vr-overlay-enable-control-bar-close`	Enable close button on control bar	bool
`--vr-scrolls-speed <float>`	VR trackpad scroll speed (default 8.0)	number
`--vr-overlay-modal`	Show SteamVR overlay as modal	bool

3.5 Embedded & Display Options

Flag	Description	Type
`--default-touch-mode <mode>`	Default touch action (hover/leftclick/rightclick/middleclick/passthrough)	dropdown
`--immediate-flips`	Enable immediate flips (tearing allowed)	bool
`--adaptive-sync`	Enable adaptive sync / VRR	bool
`-O <outputs>`	Preferred GameScope output(s)	text
`--generate-drm-mode <mode>`	DRM mode generation (default/cvt/fixed)	dropdown

3.6 Advanced Options

Flag	Description	Type
`--stats-path <path>`	Path to write GameScope statistics	file picker
`--backend <backend>`	Backend (auto/sdl/wayland/drm/headless/openvr)	dropdown
`-C <ms>`	Cursor hide delay in milliseconds	number
`--force-composition`	Disable direct scan-out	bool
`--debug-hud`	Draw debug HUD	bool
`--hdr-debug-force-support`	Force HDR support flag	bool
`--hdr-debug-force-output`	Force HDR output on display	bool
`--prefer-vk-device`	Prefer Vulkan device for compositing	bool
`--expose-wayland`	Expose Wayland	bool
`--rt`	Realtime scheduling	bool
`--headless`	Headless mode	bool

4. MangoHud CLI Arguments

4.1 Launch Command

$mangohud [--dlsym] <game_command>

4.2 Configuration

Setting	Variable	Description
`MAHUARGS`	Config	MangoHud config string (passed as `MANGOHUD_CONFIG`)
`MHIC`	Config	MangoHud config file path (passed as `MANGOHUD_CONFIGFILE`)
`MAHUVAR`	Config	If 1, sets `MANGOHUD=1` instead of binary
`LDPMAHU`	Config	If 1, uses `LD_PRELOAD` instead of binary wrapper
`MAHUDLSYM`	Config	If 1, appends `--dlsym` to mangohud

5. Proton/Wine CLI Arguments

5.1 Proton Command

$RUNPROTON run [--verb] <game_exe> <game_args...>

Where --verb is the Steam runtime flag, run is the Proton subcommand.

5.2 Wine Command

WINE=<proton>/bin/wine WINEARCH=win64 WINEDEBUG=<debug> WINEPREFIX=<prefix> <wine> <game_cmd>

5.3 Proton Environment Variables

Variable	Description
`PROTON_LOG`	Enable Proton logging
`PROTON_LOG_DIR`	Proton log directory
`PROTON_DEBUG_DIR`	Proton debug directory
`PROTON_DUMP_DEBUG_COMMANDS`	Dump debug commands
`PROTON_FORCE_LARGE_ADDRESS_AWARE`	Force large address aware
`PROTON_NO_D3D10`	Disable D3D10
`PROTON_NO_D3D11`	Disable D3D11
`PROTON_NO_ESYNC`	Disable esync
`PROTON_NO_FSYNC`	Disable fsync
`PROTON_ENABLE_NVAPI`	Enable NVAPI
`PROTON_HIDE_NVIDIA_GPU`	Hide NVIDIA GPU
`PROTON_USE_WINED3D`	Use wined3d
`NETOPTS`	Network options

6. DXVK CLI Arguments

6.1 DXVK HUD Options (comma-separated)

DXVK_HUD=<options>

Option	Description
`1`	Frame count
`devinfo`	Device info
`fps`	Frames per second
`frametimes`	Frame times
`submissions`	Submission count
`drawcalls`	Draw call count
`pipelines`	Pipeline count
`memory`	Memory usage
`gpuload`	GPU load
`version`	DXVK version
`api`	API version
`compiler`	Shader compiler
`samplers`	Sampler count
`full`	Full HUD

Additional DXVK HUD options:

scale=<float> — HUD scale factor

6.2 DXVK Configuration

Variable	Description
`DXVK_HUD`	HUD options (see above)
`DXVK_LOG_LEVEL`	Log level (info/error/perf/debug/verbose)
`DXVK_CONFIG_FILE`	Path to DXVK config file
`DXVK_FRAME_RATE`	FPS limit
`DXVK_HDR`	HDR enable

7. VKD3D CLI Arguments

Variable	Description
`VKD3D_CONFIG`	Config string (e.g. `dxr11` for raytracing)
`VKD3D_DEBUG`	Debug level
`VKD3D_SHADER_DEBUG`	Shader debug level
`VKD3D_LOG_FILE`	Log file path
`VKD3D_VULKAN_DEVICE`	Vulkan device to use
`VKD3D_FILTER_DEVICE_NAME`	Filter devices by name
`VKD3D_DISABLE_EXTENSIONS`	Disable Vulkan extensions
`VKD3D_TEST_DEBUG`	Test debug level
`VKD3D_TEST_FILTER`	Test filter
`VKD3D_TEST_EXCLUDE`	Test exclude
`VKD3D_TEST_PLATFORM`	Test platform
`VKD3D_TEST_BUG`	Test bug
`VKD3D_PROFILE_PATH`	Profile path

8. Wine Environment Variables

Variable	Description
`WINE_FULLSCREEN_FSR`	FSR in Wine (1=enabled)
`USEFWS`	FSR in Wine (1=enabled)
`WINE_FULLSCREEN_FSR_STRENGTH`	FSR strength
`WINE_FULLSCREEN_FSR_MODE`	FSR mode
`WINE_FULLSCREEN_FSR_CUSTOM_MODE`	Custom FSR mode
`WINE_FULLSCREEN_INTEGER_SCALING`	Integer scaling (1=enabled)
`WINEDLLOVERRIDES`	DLL overrides
`WINEDEBUG`	Debug channels
`WINEESYNC`	Esync (0=disabled)
`WINEFSYNC`	Fsync (0=disabled)
`WINEFSYNC_FUTEX2`	Fsync futex2 (0=disabled)

31. Raytracing

Setting	Variable	Notes
Raytracing	`USERAYTRACING=1`	Sets `VKD3D_CONFIG=dxr11`, appends `-dx12` to game args

32. PrimeRun (NVIDIA Prime Render Offload)

Setting	Variable	Notes
Enable	`USEPRIMERUN=1`	Sets `__NV_PRIME_RENDER_OFFLOAD=1`, `__VK_LAYER_NV_optimus=NVIDIA_only`, `__GLX_VENDOR_LIBRARY_NAME=nvidia`, `VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json`

33. Zink (Vulkan-to-Gallium)

Setting	Variable	Notes
Enable	`USEZINK=1`	Sets `__GLX_VENDOR_LIBRARY_NAME=mesa`, `MESA_LOADER_DRIVER_OVERRIDE=zink`, `GALLIUM_DRIVER=zink`

34. WineSync

Setting	Variable	Notes
Enable	`ENABLE_WINESYNC=1`	Sets `WINEESYNC=0`, `WINEFSYNC=0`, `WINEFSYNC_FUTEX2=0`

35. X64dbg

Setting	Variable	Notes
Run X64dbg	`RUN_X64DBG=1`	Enable x64dbg
Attach on start	`X64DBG_ATTACHONSTARTUP=1`	Attach x64dbg on game start

36. Dependencies

Setting	Variable	Notes
Run deps	`RUN_DEPS=1`	Install dependencies
Dep exe	`DEPSEXE`	Dependency executable

37. Boxtron

Setting	Variable	Notes
Enable	`USEBOXTRON=1`
Args	`BOXTRONARGS`	`--wait-before-run` by default
Binary	`BOXTRONCMD`	Boxtron path
Exe	`BOXTRONEXE`	Boxtron exe

38. Roberta

Setting	Variable	Notes
Enable	`USEROBERTA=1`
Args	`ROBERTAARGS`	`--wait-before-run` by default
Binary	`ROBERTACMD`	Roberta path
Exe	`ROBERTAEXE`	Roberta exe

39. Luxtorpeda

Setting	Variable	Notes
Enable	`USELUXTORPEDA=1`
Args	`LUXTORPEDAARGS`	Luxtorpeda args
Binary	`LUXTORPEDACMD`	Luxtorpeda path
Exe	`LUXEXE`	Luxtorpeda exe

40. Game Mode

Setting	Variable	Notes
Game Mode	`USEGAMEMODERUN=1`	Enable GameMode

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