Linux Mint is based on Ubuntu, so I imagined it would work with Steam. I am able to download games, but cannot play them.
The games I have for Linux are FTL: Faster Than Light and TF2.
FTL - does not launch on Linux (It successfully runs on Windows). When I launch it, my desktop environment crashes and I return to tty. Confused, I restarted mdm and relaunched the game, which gave the same crash and a warning that my system temperature was too high. Checking '`top`, I see that there are now two instances of FTL that detached themselves from my desktop environment and did not shut down when it crashed (whereas all my other applications did). Both instances were taking up ~90-100% CPU
TF2 - I understand it's a common problem, but I followed http://steamcommunity.com/app/221410/discussions/0/846938351032713908/
and the black screen issue remains unresolved. The Steam overlay DOES work, and the splash screen audio plays, but no video aside from that.
System - Linux Mint 13, Intel dual core i7 @ 2.67 GHz, Nvidia 330M GPU.
Display manager MDM, attempted with Awesome WM and Cinnamon both.
Nvidia drivers consistently crash my computer, so I am using the Nouveau drivers.
If it helps, the latest Windows Nvidia drivers also do not work for most games and freeze up on all 3D games, with the exception of Magicka.