Mortal Sin is a deep, complex roguelike with a vast array of permanent unlocks that drastically change how you play. This comprehensive guide catalogs every weapon, combo, skill, and progression upgrade you can find, organized by area and node. Use this as your roadmap to power up your character and conquer the game’s challenges.
Table of Contents
Unlock Type Legend
- Blue = Weapon / Passive Skill: New tools for your arsenal.
- Red/Pink = Permanent Combo Upgrade: New attack sequences to master.
- Yellow = Starting Area Upgrade: New shops and services in the hub.
- Green = Permanent Progression Path: Unlocks new areas and game modes.
- Orange = Game Mechanic: New core gameplay systems.
Dungeon Unlocks
Dungeon (A)
- A-2: Halberd (Weapon) – A deadly weapon with superior range.
- A-3: Whirlwind (Combo) – Hold attack and release to perform a Whirlwind.
- A-4: Crafting Anvil (Starting Area) – Craft powerful weapons and equipment in the hub.
- A-5: Trial of Resolve (Progression) – Unlocks the Trial of Resolve area. *Note: Must also complete Cave A-5.*
Dungeon (B)
- B-2: Vitality Overwhelming (Mechanic) – Health Potions grant temporary invulnerability.
- B-3: Crescent Moon (Combo) – Combo: Kick -> Thrust -> Swing for a Power Strike.
- B-4: Demonic Tutor (Starting Area) – Purchase skill upgrades in the hub for a high cost.
- B-5: Forest (Progression) – Unlocks the Forest area. *Note: Completing either B-5 or Cave B-5 unlocks it.*
Dungeon (C)
- C-2: Focused Strike (Mechanic) – Thrusting Attack and Infinity Blade deal more damage.
- C-3: Power Kick (Combo) – Combo: Unarmed Bash/Punch -> Kick for high damage and knockback. Grants invulnerability.
- C-4: Minor Essence Retention (Mechanic) – +5000 max essence retention between runs.
- C-5: Sleight of Hand (Combo) – Combo: Unarmed Bash -> Punch -> Equip Weapon -> Swing to unleash Whirlwind.
Cave Unlocks
Cave (A)
- A-2: Spectral Mace (Weapon) – Slams enemies from a great distance.
- A-3: Tempest (Combo) – Combo: Kick -> Bash -> Swing to unleash Whirlwind.
- A-4: Potion Shop (Starting Area) – Purchase Health Potions and Wizard Oils in the hub.
- A-5: Trial of Resolve (Progression) – Unlocks the Trial of Resolve. *Note: Must also complete Dungeon A-5.*
Cave (B)
- B-2: Power Overwhelming (Mechanic) – Wizard Oils temporarily increase your damage.
- B-3: Whirling Dervish (Combo) – Combo: Bash -> Kick -> Thrust -> Swing to unleash Whirlwind.
- B-4: Sinful Offering (Starting Area) – Increase your stats in the hub for a high cost.
- B-5: Forest (Progression) – Unlocks the Forest area. *Note: Completing either B-5 or Dungeon B-5 unlocks it.*
Cave (C)
- C-2: Manifest Weapon (Passive Skill) – Every 5-hit combo summons a rotating axe.
- C-3: Retaliation (Combo) – Unleash Whirlwind after a Perfect Parry.
- C-4: Minor Essence Retention (Mechanic) – +5000 max essence retention between runs.
- C-5: Edge of Madness (Combo) – Combo: Bash -> Swing -> Bash -> Kick -> Thrust -> Swing to unleash Whirlwind and a devastating blast.
Forest Unlocks
Forest (A)
- A-2: Hammer (Weapon) – A slow but powerful weapon that can hit multiple enemies.
- A-3: Eye of the Storm (Combo) – Combo Whirlwind (after at least one spin) into a Thrusting Attack.
- A-4: Parting Gift (Mechanic) – Scares may drop treasure when you avoid their grasp.
- A-5: Mortal Coil (Weapon) – Summons a slow-moving skull that pierces enemies.
Forest (B)
- B-2: Major Essence Retention (Mechanic) – +10,000 max essence retention between runs.
- B-3: God Hand (Combo) – Combo: Unarmed Bash -> Punch -> Punch -> Unarmed Bash to unleash a devastating blast.
- B-4: Quick Step (Mechanic) – Passive Skill. Increased dash distance.
- B-5: Soul Lance (Weapon) – Fires a soul-piercing beam.
Forest (C)
- C-2: Sin Ward (Passive Skill) – Summons a rotating cross while equipped.
- C-3: Spell Weave (Combo) – Combo: Kick -> Cast Spell to launch a Waveblade.
- C-4: Minor Essence Retention (Mechanic) – +5000 max essence retention between runs.
- C-5: Sinner’s Respite (Combo) – Combo: Kick -> Thrust -> Kick -> Bash -> Kick -> Thrust to unleash a devastating blast.
Trial of Resolve & Endgame Unlocks
Trial of Resolve
- A: Infinity Blade (Mechanic) – Hold during a Thrusting Attack to continue thrusting at reduced power.
- B: Two Hundred Man Slayer (Weapon) – When One Hundred Man Slayer is not enough…
- C: Double Strike (Combo) – Combo: Bash -> Swing -> Thrust.
Maw of Sin
- Hard Mode / Path of Torment (Progression) – An alternative difficulty where everything must be re-unlocked.
- Secret Ending: Sinblade (Weapon) – “Let your hatred fuel this blade.”
