BioShock creator, Irrational Games wants you to guess it's next game project.
The developer's called on fans to drop it a line via telephone to guess what it's working on. We reckon it's a Kinect lifestyle game.
By calling the provided phone number (617-302-7805) you can leave your guess and could appear in a future Irrational podcast, which will probably take the piss out of how bad your prediction is.
Irrational's previously worked on System Shock, SWAT 4 and the aforementioned underwater classic. It's previously been revealed that the Ken Levine studio's creating an "original title".
Get your predictions in.