Which game should I get?

[Who]

Minecraft: I beleive you already played it, its up to you to think if it is good or bad

Counter Strike: Not a bad choice, I actually like 1.6 version but yeah, I guess source is OK

Left 4 Dead 2: If you are planning to play online watch out, you may never get up from your chair

Battlefield 2: Good choice, better graphics, gameplay and IA. I like the fact that you are allowed to play as the Muslim people, its nice to get out from all the "American bad-ass" thing (No Offence)