Universe is an old VAX console game, rescued from DECUS archives from the 1980's, converted to C and able to be run under Linux. It is vaguely similar to the old STTR1 and TREK73 games of that era.
"Many Games" is a system for creating and running a nearly endless
number of user-defined (or downloaded) games in a graphical
system. It will support games, such as checkers, tetris, solitaire,
breakout, and almost any other two dimensional game.
GloryLands is a Web-based, Massive Multiplayer Online RPG/Strategy game written entirely in PHP/MySQL. It aims to be endless and always interesting, using the constant contribution of the Game community.