Getdeb provides compiled binaries of popular games and applications in the form of deb packages. These applications are not available in official ubuntu repository. Until now you have to download individual deb packages and install them. And things just got better and we have a getdeb repository. Cut the following line and paste it at the end of your /etc/apt/sources.list file.
deb http://ubuntu.org.ua/ getdeb/
Now update your apt cache.
sudo apt-get update
This is noway official repository and you should be aware of risks.
Repository for ubuntu games
getdeb announced a newer gamers ubuntu repostory. Will update this post as soon as its available. Mean while download compiled versions of game debs.
Enjoy Ubuntu ;)