Solar2D Game Engine main repository (ex Corona SDK)
Entitas is a super fast Entity Component System (ECS) Framework
Open Source real-time strategy game engine for early Westwood games
SonarSource Static Analyzer for Java Code Quality and Security
The flexible game engine
FPS Unlocker for Roblox
GDI, OpenGL and Direct3D 9 re-implementation of the DirectDraw API
Skin changer for League of Legends (LOL)
Unity / XNA game patcher and plugin framework
Desktop/Android/HTML5/iOS Java game development framework
A simple and easy-to-use library to enjoy videogames programming
Set of Python modules designed for writing video games
dhewm 3 main repository
A beautiful, easy-to-use and ad-free comic and game client
Fast PlayStation 1 emulator for x86-64/AArch32/AArch64
Cross-Platform C++ 2D/3D game engine
3D Procedural Game Engine Using OpenGL
Patching, replacing and decorating .NET and Mono methods
Command line video player
Multi Theft Auto is a game engine
Open source clone of the Age of Empires II engine
Accuracy-focused XNA4 reimplementation for open platforms
Original Xbox Emulator for Windows, macOS, and Linux
The source code to VVVVVV
MAME is a multi-purpose emulation framework