Solo campaign for Reign In Hell... I've played it to fruition and it's a fun ride... not overly complex, and a couple of the missions were on the easy side, but it's simple to toggle difficulty if you want... the final boss took me several tries to conquer... Going forward all of Vince and Adam's games have a solo component to them, so this was their first swing at it. Thoroughly enjoyed the experience and gave me hours of fun.