May 10, 2013, 1:14 PM — Here's how you can play Half Life 2 on your Ubuntu 13.04 computer.
1. Be sure that you have Steam installed in Ubuntu 13.04.
2. Go to the Steam page for Half Life 2 in the Steam store and purchase it.
For more, see the original article at the link below.
‘Half-Life 2′ Hits Linux, Available on Steam | OMG Ubuntu