Grand Theft Auto IV

SolKutTeR · Aug 13, 2026 at 6:40 PM

Erst San Andreas dann Vice City und nun GTA 4 von dem User Hochgeschwindigkeitsrennfahrer.

Grand Theft Auto IV - VR mod

WIP VR glue for GTA IV Complete Edition (Steam): stock DXVK d3d9.dll + our Win32 ASI + OpenVR / SteamVR.

Experimental singleplayer / offline project — not a polished commercial VR port.
Click to expand...

What works

Supported Notes / not supported yet
SteamVR only (OpenVR) No OpenXR / standalone WMR / Meta runtime without SteamVR
Head tracking (look around) Motion controller hands / VR gun stock — not yet
Experimental head aiming Aim-with-headset while ADS (work in progress)
Xbox / gamepad recommended Other controllers not tested yet
Stereo / AER Full VR locomotion redesign — not yet
Developed on HP Reverb G2 via SteamVR. Other SteamVR headsets may work; not tested as primary.
Click to expand...

Controls

Input Action
F3 or Xbox Select (Back) Open / close VR settings menu
F9 or Right stick click Recenter view (SteamVR zero + heading baseline)
Menu: WASD / arrows / left stick Navigate
Menu: Enter Apply
Kill VR: set gtaiv_dxvk_vr.stereo to 0 next to GTAIV.exe, then restart. Or rename gtaiv_dxvk_vr.asi → .asi.off.
Click to expand...

Requirements

GTA IV Complete Edition (Steam) — 32-bit GTAIV.exe

FusionFix (ASI loader + CE fixes)

SteamVR running with a tracked headset

Our ASI + DXVK d3d9.dll drop

Everything that loads into GTAIV.exe is Win32 / x86.
Click to expand...

External sources (files we rely on)

Component What it is Link
DXVK 3.0.2 Deliverable d3d9.dll (x32) + Vulkan interop for HMD Submit doitsujin/dxvk · v3.0.2
dxvk-gplasync Optional async DXVK A/B (shader stutter). Not required for VR Submit Ph42oN / dxvk-gplasync (GitLab)
GTAIV.dxvk-cache Optional DXVK state cache (less first-run stutter; version-sensitive) Community / FusionFix ecosystem caches e.g. Nexus · FusionFix files — we also ship a multi-vendor copy under inspo/dxvk cache/
FusionFix CE fixes + plugins\ + update assets; ships ASI loader as dinput8.dll ThirteenAG/GTAIV.EFLC.FusionFix
Ultimate ASI Loader Proxy that loads .asi plugins (dinput8.dll) — also bundled with FusionFix ThirteenAG/Ultimate-ASI-Loader
MinHook Win32 / vtable hooks inside our ASI TsudaKageyu/minhook
ScriptHook.dll (Aru) Optional — name-resolve natives (GetNativeAddress) for phone/aim helpers dev-c.com · GTA IV Script Hook
aCompleteEditionHook.asi Optional CE bridge for Aru ScriptHook on Complete Edition LCPDFR · CE Compatibility Patch (LMS) · ModDB mirror
ScriptHookDotNet Optional .NET scripts (First Person ASI tests, etc.) HazardX/gta4_scripthookdotnet · CE build Tomasak v1.7.1.8
Click to expand...

Important notes

aCompleteEditionHook.asi is not required for our VR ASI. FusionFix alone is enough to load gtaiv_dxvk_vr.asi. On some CE + FusionFix setups the CE hook crashes at boot — leave it out unless you need ScriptHook scripts.

ScriptHook is optional for core VR; some HUD/native helpers work better when ScriptHook.dll + CE hook resolve names.

Prefer stock DXVK 3.0.2 as d3d9.dll for VR. FusionFix’s own vulkan.dll path is separate; do not treat a random game’s d3d9.dll as “GTA VR”.

Click to expand...

Architecture & technique references

Project Link
L4D2VR sd805/l4d2vr
UEVR praydog/UEVR
Breath of the Wild Head / gyro aim design inspiration (Nintendo)
Full credit list: CREDITS.md.
Click to expand...

Status

Done: flat DXVK + ASI Mono-Submit into SteamVR.
Experimental: AER and TrueStereo 3D paths in different stereo modes — both work for depth, with look-around blur as a known side effect depending on mode.
Also: experimental head aiming; Xbox pad recommended (other pads untested).
Now: stability / stereo / camera polish — one change per test build.

Live lab notes (dev): docs/CURRENT-STATE.md.

GTA IV belongs to Rockstar Games / Take-Two. This project redistributes no Rockstar game assets and no closed third-party VR binaries.
Click to expand...

License
MIT for our ASI / scaffolding. DXVK, MinHook, FusionFix, ScriptHook, and all linked projects keep their own licenses — see CREDITS.md.
Click to expand...

Useful Searches

Grand Theft Auto IV

SolKutTeR ADMIN Staff Member

Useful Searches

SolKutTeR

ADMIN
Staff Member