How long is the campaign in The Darkness 2 Demo?

[Gowravaram]

I wanted to know about the total campaign length for this particular game The Darkness 2 Demo? What would be the length for co-op campaign? Post if you are aware of any information about the above mentioned thing.

[DevenderD]

According to me single player mode will not be as super and easy as we are expecting. I have punished MW3 on the Veteran in single day so I am hoping that there would be more challenge. The previous title was having epic like feeling and you will have long journey like experience from the beginning to end. I am hoping that this particular game will give same kind of satisfaction.

[Halle]

I think it will be really great thing if the developer of the game would provide long campaign. If there will be 20 hours of main campaign then it would be really great.

[Daksha90]

Just wondering, Co-Op will not be able of more than that of 5 hours until unless all of 4 would be replayable. Each set would be of 10 hours. so it will be good enough in terms of gaming. I do agree that there should be 20 hours of campaign or more. I am really waiting for this particular game and I am hoping that it will have great gameplay as that of the previous version of the game.