Band Of Crusaders is a dark fantasy party RPG with heady overtones of XCOM and Diablo
If Space Marine 2's wanton devil-mulching left you hungry for more fantastical depictions of medieval zealotry, maybe take a look at Band Of Crusaders, an open-world party-based RPG in which you are the Grandmaster of a knightly order, trying to keep a bunch of wily Archdemons out of Europe. It seems to play a bit like XCOM, with an oppressive world map that is slowly encroached upon as you travel around recruiting soldiers, interacting with settlements, and picking real-time fights with hellfiends "inspired by biblical descriptions and European folklore". Naturally, parallels with real-life xenophobia and sectarian hatred abound. Here's the trailer.