Open source library for creative expression on the web, desktop, etc.
CTFs as you need them
Self-hosted CMS platform based on the Laravel PHP Framework
Gideros Release version
Arianne is an engine to develop multiplayer online games like Stendhal
PyCAPGE - Python Classic Adventure Point and Click Game Engine
SDL based generic 2D game engine
Small lightweight program to customize your keyboard
Java Settlers
Source code of the chapters of the book 3D Game Development with LWJGL
Multidocument automation by templates - for sphinx, mkdocs, epydoc ...
Java decentralized cross-platform network multiplayer game engine
Gorgon Game Engine (GGE) is a C++ game engine that handles many tasks.
Multimedia asset management and manipulator for Étoilé
XNA based game engine completely written in c#
a game library to develop audio games
C++ Framework for slot machine games
A multiplatform game engine for interactive fiction experiences
Pear3DEngine is a modern and modular 3D development framework
An extensible development framework for roleplay games.