[Tom4784]

With online gaming, I'd say a lot of fighting games have been given more replayability. I regurlarly play Super Street Fighter 4 every few weeks and it's the same with most fighting games. Online has really rejuvenated the genre.

I'd say Left 4 Dead is a great game for replayability, as is Mass Effect for all the choices. As for downloadable titles I'd say Castlevania: Harmony of Despair. It's incredibly addictive and it's loot based system will pretty much have you playing it over and over again.