Good game on steam for like a dollar

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.