Everything. Played through the entire game on 32 bit color mode in Wine after downloading and starting from Steam.
What does not
The sound can get slightly wonky but this happens with other windows programs on this system - something to do with Wine/Linux and the sound hardware + drivers on my machine. A reboot can help.
What was not tested
Did not test 16 bit color
Buy from the Steam store using a web browser. Then start up Steam using wine and it will appear in your 'library'. You can then download/install. You need to disable the 'steam online community' by right clicking on properties (like many other Steam games).
|Operating system||Test date||Wine version||Installs?||Runs?||Used|
|Current||Ubuntu 12.04 "Precise" i386 (+ variants like Kubuntu)||Nov 11 2012||1.5.16||Yes||Yes||Silver||an anonymous user|