A modern, cross-platform Quake game engine based on FitzQuake.
A cross-platform port of Hexen II game.
The classic "Tron" game for various Z80 computers
Cross platform administration tool for Source Engine dedicated servers
3D vehicle simulator based on Lagrangian dynamics to simulate dynamics
realistic but simple flight simulator: exploration and casual landing
remake of the classic STUNTS game, but more realistic; more like GTA 3