i beleave in the sleeper, and the big AAA tiles as well.

the game that under performed sells wise is MOD NATION RACERS! this is the game that brouhgt me back to the racing genre considering i've been out of it sence the 5th gen thats a huge accomplishment for a new ip.

in my opinion it rivals GT5. as i learn more im able to do more; while i still suck at racing games GT and MOD NATION RACERS will keep me here for a time to come.

list of sleeper hits:

MOD NATION RACERS

HEAVY RAIN

Nier

Dantes Inferno

Bayonetta

 and more i cant name

Nier for me as well.

Especially since I haven't played Drakengard, and really didn't have any specific idea what sort of work that team does.

Heavy rain, loved it way more than I thought I would

Armada Tanks (PC)

I didn't know about the existence of this and I'm completely hooked right now.

Deadly Premonition

Nier and Nier Replicant

NIER

Most underrated game of the generation too.

Nier. I really don't understand why more people didn't buy it. I hope it reaches 2M someday... we need to do something to make that happen.

That came out this year:

Transformers: War for Cybertron

Just a great and well-made game.

That I played this year:

The Lord of the Rings: Conquest

Wow so amazing! The multiplayer is totally engrossing and amusing. I'm really frustrated at EA for closing the servers.

Just Cause 2.