Thanks to vadi4 for pointing out that the Playbuntu project is now known as Playdeb; moreover, the game-oriented depository from GetDeb for the Ubuntu Linux distribution will start public testing soon:
The good news is that a beta for the Playdeb repository will be starting on September 1st! Everyone will be welcome to participate in the beta, so you don’t have to wait long until Playdeb is available.
Please keep in mind that Playdeb is not another version of Ubuntu, but an “add-on” (a repository of software that you add) to your existing Ubuntu installation.
Additionally, we are still looking for mirrors – the basic requirements are 20gb space, rsync client, and a web server. If you’re interested in helping us out, please contact me at (firstname.lastname@example.org). Thank you!