"Games Knoppix is an entertainment-oriented version of the popular Debian-based LiveCD known as Knoppix. The idea behind Games Knoppix is excellent--a LiveCD that you can give to your friends to show them some of the more frivolous aspects of GNU/Linux. Disappointingly, however, many of the games on the CD do not work, many more are duplicates of the same game, everything is in German, and there are driver problems with both the 2.4 and 2.6 kernel options.
"Games Knoppix offers over 100 entries in its games menu, all of them being free software. There are no proprietary games such as Unreal Tournament 2004, Quake 3 Arena, NeverWinter Nights, or any other GNU/Linux-compatible commercial entertainment programs..."