"Jesus did not die on the cross, but came down and unleashed vengeance on all the nonbelievers," begins I, The Inquisitor's description on Steam. "1500 years later, an army of Inquisitors brutally enforce the faith." Alright, I'm in.
I, The Inquisitor is based on a dark fantasy, alternate history novel series by Jacek Piekara started in 2008. There don't seem to be English translations of his works yet, but I trust developer The Dust S.A.'s assertion that they're bestsellers in Poland—they really know their dark fantasy over there.