Recently, I purchased antoehr greenlit game, Bleed, off of steam-- and found that it doesn't work on 64 bit windows operating systems. So that brings me to ask this question-- what variety of systems have you tested / are you planning on testing for this game?
Ugh, I know how you feel on this. I bought Fallout 3 from Steam, and I had to do some work-arounds to get it to actually play.