A railway signalling simulation game
a 3D openGL b3d car / city town / flight / tank simulation game
Super Mario RPG Editor that can edit nearly everything in the game
Yet Another Input File Editor
oIrrlicht is example of irrlicht and AutoIt with objects or DllCall
3D Game engine
Multi-threaded 2D Renderer licensed under the Mozilla Public License
An in-game world editor for civilization 5
A world editor for HGE game engine written in python and uses OpenGL.
A fun-filled new take on the casual first person arena shooter.
A visual editing environment for Sims3 JAZZ resources.
Color Computer Emulator Virtual Disk Utility
Pear3DEngine is a modern and modular 3D development framework
A UnitEditor that can be modified to match exactly the requirements...
Flat Personal Web Publisher
A tool for roleplaying gamemasters
A complete 2D Game Engine with built in drag and drop editor
AMOS BASIC reimplementation in Java
Cross-platform 2D game engine
Editor for NBT Files like Minecraft's "level.dat"