Enigma is a puzzle video game based on Oxyd, and is released under the GPL. Enigma continues to be very popular as an open source multi-platform derivative of Oxyd now that Oxyd is no longer maintained. The open source fangame Enigma has been praised in reviews. Enigma is a marble game.
Details
Release dates
May 25, 2007 (Worldwide)
Linux, Mac, PC (Microsoft Windows)