Godot Engine – Multi-platform 2D and 3D game engine

An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.

The Serenity Operating System 🐞

Animated sprite editor & pixel art tool (Windows, macOS, Linux)

Command & Conquer: Remastered Collection

PlayStation 4 emulator for Windows, Linux and macOS written in C++

Vulkan-based implementation of D3D8, 9, 10 and 11 for Linux / Wine

Audio Editor

PCSX2 - The Playstation 2 Emulator

The 7-Zip derivative intended for the modern Windows experience

The 2013 edition of the Source SDK

Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations wit…

Classic Shell Reborn.

THIS REPO IS NOT MAINTAINED ANYMORE. Please see https://codeberg.org/tenacityteam/tenacity for Tenacity, which is maintained.

A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC)

The Forge Cross-Platform Framework PC Windows, Steamdeck (native), Ray Tracing, macOS / iOS, Android, XBOX, PS4, PS5, Switch, Quest 2

Cyberpunk 2077 tweaks, hacks and scripting framework

Lightweight, cross-platform & full-featured shader IDE

A generic post-processing injector for games and video software.

Asset Bundle Extractor

Decompilation of 3D Pinball for Windows – Space Cadet

Universal Unreal Engine VR Mod (4.8 - 5.4)

An unofficial PC port of the Xbox 360 version of Sonic Unleashed created through the process of static recompilation.

GZDoom is a feature centric port for all Doom engine games, based on ZDoom, adding an OpenGL renderer and powerful scripting capabilities

Dagor Engine and Tools source code from Gaijin Games KFT

OpenAL Soft is a software implementation of the OpenAL 3D audio API.

Xbox (Original) Emulator

Universal MS Key Toolkit

A toy physically based GPU path tracer (C++/OpenGL/GLSL)

Overlay for running GPU shaders on top of Windows desktop