Open source library for creative expression on the web, desktop, etc.
ThinkPHP Framework
INSTEAD - Simple Text Adventure Interpreter.
JavaScript framework to build game engines, games, emulators and apps
Ze Text Adventure game Builder : Create as you play !
2D Game Engine
A cross platform Lua based game engine
Multidocument automation by templates - for sphinx, mkdocs, epydoc ...
Generate ready-to-use disc images for your Sega Dreamcast system !
Asphyre is a cross-platform framework for Delphi and FreePascal.
Event driven concurrent framework for Python
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Gorgon Game Engine (GGE) is a C++ game engine that handles many tasks.
Cross-platform C framework very compact libraries and tools.
Scriptable frontend for media applications.
Open Source Virtual World and MMOG Development Platform