An open-source Phantasy Star Online server for *nix
Horse racing simulation
PyMancala: A Python API for the Mancala game
BOT IRC in Perl
2D Game Engine
Tintin++ scirpts for MUD (mmorpg)
Student Project - Mulitplayer vocabulary quiz
A nice GUI client for Imperium
Basic console interface for 3 player chess in a 7x7x7 cube.
RPG Textual em Java
Classic text-based treasure hunt
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
An Snakes Game with Advanced AI in C Lang
Single-/multi-player card game Mau Mau (similar to UNO®)
Find as much words you can in a schema (game console based).
A text-based adaptation of the classic tabletop game 'Pass the Pigs'
A modern "graphics" API for text-based applications
Small and minimalistic text-based hack 'n slash RPG
"Kenny" is an XBoard/WinBoard chess engine based on "Winglet"