Bought through Steam? Interesting thought. That’s entirely different.
Looks like for me it was:
Audiosurf (Feb, 2008)
Darkstar One (Mar 2008)
Unreal II: The Awakening (Mar 2008) (Wow, I’ve still never played more than 20 minutes of this)
Prey (Mar 2008)
Civ IV Complete Pack (Apr 2008)
Everyday Shooter (May 2008)
Shadowgrounds Survivor (May 2008)
Titan Quest Gold (Jul 2008)
Max Payne 2: The Fall of Max Payne (Sep 2008)
I have to shake my head at that list. I haven’t played any of those games extensively except Titan Quest Gold. Literally none of the others. I played through Prey on the Xbox 360 instead, so I’m not sure why I thought double dipping a PC version was a good idea back then.
I’ll get to Civ IV one of these decades. All the rest are crap I think.
Edit: Wow, going through the rest of this list, there’s only 4 or 5 games I’ve purchased from Steam that I’ve played. Everything else just goes into the backlog and then gets eliminated later. I really should stop buying games from Steam, is my main takeaway from looking at this list.