On Wednesday May 2nd 2012 I instructed a lesson about "Gaming On Ubuntu" which gave some great ideas where to look for Ubuntu game news and where to find Ubuntu games. This was part of Ubuntu Open Week. Enjoy!
PDF Lesson Doc - http://ubuntuone.com/4MBDAYiMv70oQz8EBfBzDU
This PDF Doc - http://ubuntuone.com/4MBDAYiMv70oQz8EBfBzDU
Ubuntu Open Week Lesson Transcript with further insight
Ubuntu Open Week Class Schedule: https://wiki.ubuntu.com/UbuntuOpenWeek