From the post:
Gladus Hereticus is a lite solo dungeon crawler (city crawler really...), using a pack of regular playing cards to generate areas, encounters, loot and for resolving attacks and checks.
Work your way through a destroyed city and attempt to survive long enough to assemble the device that could reverse the fate of this place. Level up, gather equipment and fight off the horrific inhabitants of the Smoldering City. Once you feel you are strong enough, venture into the Necropolis beneath the city - who knows what foul and terrifying creatures will be down there...
Gladus Hereticus is a roguelike: highly lethal, randomized and with no roleplaying but plenty of combat. Be prepared to make tough decisions, and to meet death's sweet embrace more often than you would like.