Boss Guide
Mortal Sin features 5 main bosses, each guarding a different area. From the Baron of Sin in the Dungeon to the Embodiment of Sin in the Maw of Sin, each boss requires different strategies and preparation. This page also lists unique enemies and the standard enemies found in each area.
Main Bosses
Baron of Sin
DungeonThe first boss of Mortal Sin, encountered in the Dungeon area. Guards the path to the Cave and subsequent areas.
Apostle
CaveThe boss of the Cave area. Defeating the Apostle is required to progress toward the Forest and Vessel areas.
Lord of Redemption
ForestThe boss of the Forest area. A challenging encounter that tests your mastery of combat mechanics and combo systems.
Cursed King
VesselThe boss of the Vessel area. The Cursed King is one of the most difficult bosses, requiring strong Sin Level and gear.
Embodiment of Sin
Maw of SinThe final boss of Mortal Sin. To reach the Embodiment of Sin, you must get Helena to level 8 (unlocking Divine Retribution), complete three Trials of Resolve in a single run, and apply three Oaths during that run.
Unique Enemies
Immortal Construct
A unique enemy with special mechanics. on specific location and behavior.
Witch
A unique enemy with spellcasting abilities. on specific location and behavior.
Divino
A unique enemy. Divino's Decree is a gauntlet item associated with this enemy.
Scares
A unique enemy type. on specific location and behavior.