Your First Steam Game

Dark messiah

Orange Box

CS:S;
DOD:S;
TF2;

Source Multiplayer Pack..love CSS :)

Empire TW

Garry's Mod and CS:S pack. I wanted to make contraptions!

free - Team Fortress 2
Premium - Counter-Strike

The Orange Box, although I had the Half-Life Platinum Pack before it, I didn't have Steam then.

Orange Box

Nvidia Promo just like you.... I waiting to fight against you...for my honor.

Left 4 Dead or Titan Quest Gold. Not sure which I bought sooner.

I bought TF2 in march 2009 iirc.

CS 1.6

empire total war

Like most people, Orange Box. :)

Portal

KF

HL2:EP1

Magicka

Sanctum :)

Portal when they gave it away for free the first time.

Skyrim

Half Life Generation and Orange Box :)

Orange Box, they were my only steam games, for a looong time ^^

And then I bought Borderlands GOTY, I think last summer.