An open-source Phantasy Star Online server for *nix
Pontoon in c - source code and header file
Text-based adventure game
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
Multi-platform game engine similar to old Megaman with a stage editor
Single-/multi-player card game Mau Mau (similar to UNO®)
A multithreaded, test-driven electronics emulator for .net 4.0.
A modern "graphics" API for text-based applications
Small and minimalistic text-based hack 'n slash RPG
lunux game
Play pong in your terminal
Invaders like game, written in Python with Curses... :)
ASCII-Art variant of the CTruck3D _Open truck/car simulator