The Atomic Game Engine is a multi-platform 2D and 3D engine
A unique Matching Pairs game with fruits and number pairs Memory Game
A JavaScript game library to quickly develop board games for the web
Realtime 3D engine for game development
online 4X browser game engine
Massively multiplayer online game server and client framework
Fast logger for GeoKrety.org game
Remake of the classic Caesar III game
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Modern AS3 Game Engine
3D .NET engine for Windows, Linux, Mac
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
a fast configurabele 2048 clone
Dragging and Dropping Components for Multi-projection Applications
plugin-based RPG manager in C++ and Qt5
Open Game Bootstrap
Paintown is a 2d fighting game engine.
Simple sudoku game for kid.
Small Java game such as "Connect Four" but something differently.
This is a hacking style game set in the early '80s
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Conway's Game of life cross-platform implementation.