Irrational Games (creators of Freedom Force and BioShock) has been working on something for the past couple of years, but no one outside of the Boston studio knows what it is. While it was originally thought that they were making the next X-Com, 2K Marin announced that it’s their next game. While the mystery continues, Irrational is using an original way to promote their next game: having fans call them and guess what it will be!

What do you think we are working on Call and leave a message, reads the company’s Twitter account. Please keep it short. 617-302-7805.