JavaScript framework to build game engines, games, emulators and apps
Java Settlers
The imaginary eight-bit machine
3D .NET engine for Windows, Linux, Mac
A game engine written in the D programming language
A generic 2D engine for any kind of game
AutoTeach makes kids study and learn in exchange for internet access.
C-Lesh is a game programming language for 2D games.
An HTML web game platform
Atlarius is no longer under development.
An extensible game engine that targets RPGs.
Andruill Engine is a GMS (Game Management System) written in PHP.