Damnation
The only challenge in this game is to have the will to go until the last chapter honestly.
Too much lag during the shooting actions.
Many bugs too while playing in co-op. For example, you wont be able to speak with your partner sometimes...never knew why...
Maybe, the only positive thing about this game is the verticality in the game-play that is unique so far, just too bad that they didn't really exploit this part of the game.
On the overall, damnation is a real waste of time. Sad cause I was expecting much more out of this game, but sometimes, disappointment may also result from that kind of FPS.