Garry's Redemption v0.1.0-beta
Play Red Dead Redemption 2 as a Garry's Mod player. GMod's movement, physgun, toolgun, weapons, HUD and Q menu inside RDR2's world, with RDR2's people, horses, wagons and props reacting to GMod's physics. Story mode only.
Built with Claude Opus 5.5 as a test of what current AI can do at modding live game environments: two running games linked through shared memory, engine hooks, and RDR2's own functions called and verified in-game.
Download
GarrysRedemption-v0.1.0-beta.zip: unzip it and run GarrysRedemptionPassthrough.exe. The launcher finds both games, tells you what's missing, installs the mod and starts everything.
What you can do
- Physgun anything: RDR2's townsfolk, horses, wildlife, wagons, stagecoaches, boats and crates. Grab them, throw them, freeze them in mid-air.
- GMod weapons in RDR2: bullets hit people as real RDR2 bullets (witnesses and lawmen react) and leave marks on trees and walls. Grenades, rockets and the AR2's energy ball bounce off RDR2's houses and trees, and explosions are real RDR2 explosions.
- RDR2's own guns as GMod weapons, with their real models and sounds.
- A Red Dead tab in the Q menu: spawn any RDR2 person, animal, vehicle or object, pick RDR2's guns, and use god mode, heal, clear your bounty, or teleport to any town.
- Toolgun on RDR2's world: weld, rope, thrusters, wheels, balloons, hoists, the duplicator, the remover, and Possess to drive any person, horse or animal.
- GMod's props, NPCs and vehicles in RDR2's world, lit by RDR2's sun and moon. Run people over with a jeep.
- GMod movement: noclip, sprint, jump, first and third person, on RDR2's ground and stopped by its walls and trees.
Requirements
- Red Dead Redemption 2, story mode
- Script Hook RDR2, installed separately
- Garry's Mod on the x86-64 beta branch
- Windows, 64-bit
RDR2 must run windowed or borderless. On NVIDIA cards with RDR2 filling the screen, use the launcher's Fix the NVIDIA setting button.
This is a beta
So far it has only been played on one PC (Windows 11, NVIDIA, RDR2 on Vulkan). If something breaks, please open an issue and attach the two log files (see "Logs and troubleshooting" in the README).
Known issues
- Looking around can stutter on some setups.
- Exclusive fullscreen isn't supported.
- Most crates and barrels in towns can't be grabbed yet (people and wagons can).
- As Arthur, New Austin is off-limits: the game itself has him shot on sight there.
- Typing in GMod's text boxes assumes a US keyboard layout.
Fan project, not affiliated with Rockstar Games, Take-Two, Valve or Facepunch. No game files are included: you must own both games. MIT licence.