What was your first steam game?

Terraria

Counter Strike Source

The orange box

Half-life 2 episode one way back when it came out

Super Meat Boy.

King Arthur: The Role-playing Wargame, a year ago. It was a gift. After that I bought Gemini Rue.

Bastion + Soundtrack DLC

The Orange box.

Dota 2 :D

Orange box.

counter strike source.. and after that l4d2

but for some reason steam says it was this
Speedball 2
i think i got that from some promotion site.. and never actually played it

Mount and Blade: Warband

Learning with Portals

TF 2 (Retail)

Dark Messiah of Might and Magic was my first steam game. Ahh, good times back then.

borderlands

bought a 4-pack with some kids at school, the reason i learned about steam lol

Team Fortress 2 a Counter Strike 1.6 :)

Half-Life

Bad Company 2

Mafia 2 Retail

Counter Strike

football manager

First game bought on Steam: Port Royale 2
First game activate on Steam: Half-Life Platinum Pack

Counter Strike Source

This thread.