UtiliGame is a light-weight game engine written in Java.
Pye - Javascript Engine For Drawing Fast, Fluid and Dynamic Pie Charts
An open source skateboard games engine written in C# and .NET.
A simple network chess game
An Action Adventure Space Physics Game
Pear3DEngine is a modern and modular 3D development framework
An extensible development framework for roleplay games.
Javascript adventure game engine
Access to Irrlicht Engine SDK from assembler, C, Python, Basic, Pascal
simulations with Lagrangian method,both symbolic and by numeric deriv
Game Communications Engine
A Dungeons & Dragons Miniature Game.
A game engine in java for 2D strategy games
Cross-platform reimplementation of AMOS BASIC (runtime)
Modular Minecraft server plugin - commands, events, ...