Need Games to get

i just build a gaming pc and i came from console gaming and i just bought bf3 and i have minecraft what games should i geti would like ftp but i will buy if i need to 

Get tribes ascend its free and a fps game, and also, league of legends, team fortress 2

Counterstrike go is pretty good. If you like puzzle-esque games check out Pid. The soundtrack in that game is alone well worth the playthrough