Open game and rendering engine packed into a JavaScript framework
Game engine supporting many 3D/2D formats and graphic effects
PyCAPGE - Python Classic Adventure Point and Click Game Engine
A cross platform Lua based game engine
A 2D game engine and level editor
Example code for creating a 2D platform game in Java.
3D .NET engine for Windows, Linux, Mac
Mahasona engine is an open source game engine.
Built to be ease of use, with no programming knowledge, Multi-platform
Gorgon Game Engine (GGE) is a C++ game engine that handles many tasks.
3D Game engine
Hungry Hero is an open source Flash game built on Starling Framework.
Simple Point & Click Game
Cross-platform 2D game engine