You play as the Warlock, bound by contract to the banished god of blood, the Patron, to kill monstrous foes and collect their godly blood, Ichor. In return for your service, you grow more powerful with cursed upgrades that both increase your abilities and make your run more difficult.

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Explore procedurally generated dungeons and fight towering creatures! As you traverse the world of Ichorous, you'll meet various groups that have grown reliant on ichor. Ichor-worshipping cults, adrenaline-filled corpses, delusional limb grafters, and disdainful alchemists all desperate to hold onto the Patron's ichor.