So there are a number of games that i want to buy off steam, especially now that the summer sale is here.


I kinda want to buy games that I can play with friends. I already have:
TF2
CounterStrike(source and 1.6)
garry's mod
and pretty much every half life game

I was thinking of buying portal 2 so i can say i "bought" it but I'd Rather buy Beat Hazard. It's such a fun game on my phone I'd probably have fun with it on pc.

Anyone have any games they play that i should try?