RioichiCooper suggested those above and i replied i have already played both and beaten them, unless theres more batman games out for PS3?
Arkham City, that's why he said "wat", its not Arkham Island.
Anyways, I am sure you have AC3 already, pretty good game overall. I saw someone mention Alpha Protocol and I second his suggestion, its an awesome game marred by gameplay issues but they are easy to overlook as the conversation system and story are really well done.
http://www.terra-comic.com --> Terra: a Science Fiction Webcomic / Updates every 15th of the month.