I'm looking for a fun casual game i can just play. I don't want to worry about competitive or anything like that.
try Spiral Knights or 8 bit MMO. Both on Steam. you should also look at Neverwinter and Heroes and Generals.
There's plenty of good free 2 play games on steam you can look into... There's also Defy Gravity that's on sale for 14 cents right now. It's a decent little physics based platformer.