X Invasion is a simple clone of the famous game Space Invaders. It is for one or two players. It has some other new features and final level bosses.
Nuvie is an open source engine for Ultima 6, Martian Dreams, and The Savage Empire. It uses the original data files from the games.
An embeddable NoSQL database engine.
An extendable extract-transform-load tool where jobs are Perl or Java scripts.