Flexible level editor
Eureka is a DOOM map editor
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
SDL library for Android, including several games.
3D racing game with Sci-Fi elements and Track Editor
A planetarium software that shows a 3D simulation of the night sky
Android, UIQ 3.0, Series 60 Edition 5 open-source software
A 2D multiplayer space shooter game
A 2D scrolling platform shooter, inspired by Duke Nukem 1
Cooperative multiplayer graphical RPG and adventure game
Vivid3D is a C++ IDE/3D engine, with python scripting.
LDraw™ editor for LEGO® style digital building instructions.
Chess Cheats for Personal use
FLTrator is a retro style scrolling arcade game using FLTK.
turn-based wargame/simulator
Updated emulator of Forgotten Realms: Unlimited Adventures