Area Maps & Progression
Mortal Sin features 6 distinct areas, each with unique enemies, bosses, and unlock requirements. You choose 3 of 4 areas per run, with completed areas locked for the rest of that run. Each area has levels from A-2 to A-5, B-2 to B-5, and C-2 to C-5. Press T or down on the D-pad to track your progress.
Dungeon
The starting area of Mortal Sin. The Dungeon introduces core combat mechanics, enemy types, and the combo system. Complete Dungeon A-5 to unlock the Cave.
Cave
The Cave area features mummies and haruspex enemies. Completing Cave A-5 unlocks the Trial of Resolve (alongside Dungeon A-5).
Forest
The Forest area introduces maniacs, zealots, and metamorphs. A challenging area that tests your combat mastery.
Vessel
The Vessel is a late-game area requiring completion of all three prior areas at C-5 difficulty. Features cutthroats, dead shots, devourers, and boomers.
Trial of Resolve
The Trial of Resolve is a special area unlocked by completing both Dungeon A-5 and Cave A-5. Contains Trial A, B, C, and the Final Trial. Completing three Trials in a single run is required to reach the final boss.
Maw of Sin
The final area of Mortal Sin. The Embodiment of Sin awaits here as the ultimate boss. To reach it, you must get Helena to level 8, complete three Trials of Resolve in a single run, and apply three Oaths during that run.
Area Progression System
Each run, you choose 3 of 4 areas (Dungeon, Cave, Forest, Vessel). Completed areas are locked for the rest of that run. Quests appear randomly in each area, and you can press T or down on the D-pad to track your progress. Area A levels (A-2 to A-5) reward Vitality Overwhelming, Extra Health Potion, Crafting Anvil, and Trial of Resolve.
Area B levels (B-2 to B-5) reward Halberd, Blizzard, Demonic Tutor, and Sinful Offering. Area C levels (C-2 to C-5) reward Focused Strike, Manifest Weapon, Sin Ward, and Sin Affinity. Trials include Trial A, B, C, and the Final Trial.