3D FPS Digital Paintball 3 Multiplayer Online Game
A cipher cracker's training game.
Visual Novel engine, editor and game development.
Library for creating turn-based games with simultaneous moves.
Clearly, easy, fast and secure PHP Template engine
TurboSphere is an easy to learn and powerful JS based game engine.
CMS Engine
2D tactical stealth/action game
Uniform Database Abstraction for PHP Development
Java Game Engine
Modular Gaming Open Source Persistent Browser Based Game Framework
Real-time landscape editing
An Open Source Graphics Engine
Take the chess graphism, and use it with a chess engine.
Simple isometric graphics library for HTML5 canvas
A stand-alone PHP-only library for parsing BBCode-like tags
Performance enhancement API for RPG Maker XP, VX, VXA.
Classic backgammon in fantasy setting with a lot of missions.
Webgl Engine
A free ActionScript 3 library designed for developing 2D Flash games