Moazzam Begg, who spent nearly two years in the U.S. detention camp without charges, will play himself in the game, which could rake in £3 million ($5 million).

Rendition: Guantanamo lets players control a detainee trying to shoot his way out, meaning the game’s creators needed to know the layout of the prison. Begg has been consulting on the project, under development for more than a year and already drawing fierce criticim.