The game engine for everyone
A MUD client for Android, iOS, Linux, Mac OS X and Windows
Source of Mana is a unique 2D MMORPG
Free, open source game engine online
Virtual paper folding program
Simple ball collision simulation in C++ SFML
Godot is a fully featured, open source, MIT licensed, game engine.
Two projects in one so far: to learn foreign words and read books
TurboSphere is an easy to learn and powerful JS based game engine.
To create an open source and openly developed mmorpg
A sudoku solver project built with Java with a user friendly interface
Constraint Logic can solve word logic puzzles.