NVIDIAGameWorks/rtx-remix

Renovation Engine for DirectX Games

Portal 2 - RTX Remix Compatibility Mod

Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! ;)

A rewrite of the GameMaker Classic engine runners with additional tooling

Actively maintained open-source game remakes.

Engine for making things with a MS-DOS feel, but for modern platforms

Reverse engineering the classic GTA Vice City game

OptiScaler bridges upscaling/frame gen across GPUs. Supports DLSS2+/XeSS/FSR2+ inputs, replaces native upscalers, enables FSR-FG/XeFG on non-FG titles. Supports Nukem mod for DLSSG-to-FSR3 FG. This fork adds support for neural rendering on dx12 games, more to come.