I have only 2 games for the ps3 at the moment. tomb raider and the last of us. That's all I plan on playing until GTAV comes out. GTAV is probably going to be the last game I buy for the ps3. I was looking for a cheap psn game to kind of fill in the gap. I don't know what to get. I don't like puzzle games,but I'm pretty much game for anything else. So,what are some good cheap psn games? I'm looking for something that's no more then $20.

How about
Journey
trine 1 and 2.
Tomb Raider Guardian of Light
Guacamelee!

Might & Magic: Clash of Heroes is probably my favorite PSN game if you disregard the classics. Critter Crunch is also a lot of fun. Most of the Pixel Junk games are really good. There is Tokyo Jungle and Flower and ... well, lots of stuff.

have you played tokyo jungle. does it have alot of replay value? 

Everyday Shooter....$0.99
https://store.sonyentertainmentnetwork.com/#!/en-us/cid=UP9000-NPUA80098_00-EVERYDAYSHOOTERF

Critter Crunch....$0.99

https://store.sonyentertainmentnetwork.com/#!/en-us/cid=UP2003-NPUB30059_00-PS3ST_CRITTERCRU

those games are super cheap.but they don't like anything I could get into. thanks all the same.

Tekken Revolution
Dust 514
DC Universe

buy ps+

IF you can stand backtracking two generations in visuals and game design (and not everybody can) grab a few PSOne Classics. They're about $6-10 a pop.

Just going off those two titles I guess you're (another) action-survival-horror person. Here's what I've got in that.

Parasite Eve
Parasite Eve 2
Dino Crisis
Dino Crisis 2
Silent Hill

I haven't yet played the Dino Crisises or finished Silent Hill. Parasite Eve's visuals haven't aged too gracefully (it's almost 20 years old) and is a bit short. PE2 has a very long learning curve, but it feels rewarding by the end of it. Poke up a review or two to see if you're interested.