Galgame's Multilingual Real-time Machine Translation Tool
The source code to VVVVVV
Ct.js is a desktop game engine that makes learning programming fun
2D game development library for Ruby and C++
Enables Roblox developers to use professional software tools
The flexible game engine
RPG Maker 2000/2003 and EasyRPG games interpreter
Just another ComputerCraft fork
Cross-platform, open source, and super fast MUD client with scripting
A dead simple 2D game library for Go
A game framework written with osu! in mind.
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
An elegant Go board and SGF editor for a more civilized age
An award-winning drawing program for children of all ages
A very efficient tutor.
Chess Database and PGN viewer
A cross-platform port of Hexen II game.
A GNU/Linux operating system accessible for visually impaired.
A MUD client for Android, iOS, Linux, Mac OS X and Windows
INSTEAD - Simple Text Adventure Interpreter.
Create meks and more!
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Yet another Pathfinder Character Generator
Action RPG that's easy to mod
LDraw™ editor for LEGO® style digital building instructions.