A Balatro Modding Framework
Gideros Release version
Games for tomorrow's programmers
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
The multiplayer game engine
An End-To-End, Lightweight and Flexible Platform for Game Research
Sims 3 (and other) game package library
Neo Modding API for Minecraft: Java Edition, based on Forge
Next generation web chess club
C++ game libraries plus server.
Modular Gaming Open Source Persistent Browser Based Game Framework
The original Xivio.com World Server Core
Hungry Hero is an open source Flash game built on Starling Framework.
A Core War with time manipulation!
The Lambda-Engine is a cross platform game engine.