World Class Leader Board Editor.
3D game engine with lua scripting
A fresh & lightweight javascript game engine
Magic Another Game Engine
Cross-platform 2D and 3D game engine with modular architecture
Lumina is a visual game creation environment for building 3D games.
An OpenGL RTS game engine written in C
Cross-platform, open source, and super fast MUD client with scripting
A Modern Crosshair Overlay
Edit diagram.sty LaTeX diagrams
Edit BZFlag world maps with 3D preview
A toolbox for Sid Meier's Civilization
Final Fantasy VIII Save Editor
This is a Units Editor for Empire At War which will make things easy.
Final Fantasy VII field archive editor
Play mechanical keyboard sounds, typewriter sound as you type
3D racing game with Sci-Fi elements and Track Editor
Dune II strategy and city building on Arrakis
A Editor for Minecraft NBT files
Descent 3 by Outrage Entertainment
Retro style, multi-platform soccer game
A planetarium software that shows a 3D simulation of the night sky