Full list of all 53 Fell Seal: Arbiter's Mark achievements.
The base game contains 43 achievements, and there is 1 DLC pack containing 10 achievements.
Get the second ending
Get the first ending
Master all 19 base Monster Classes
Win the second Tournament
Complete the Ancient Path
Open all treasure chests
Complete the Obelisk riddle
Defeat Morgaine
Craft a final-tier weapon
Visit the fifth Relic
Visit the fourth Relic
Cleanse the Cursed Shield
Recruit Kairu
Complete the Halloween encounter
Obtain all gadgets
Master all Human story character Classes
View all optional dialogue events
Open 50% of treasure chests
Recruit Katja
Defeat at least 4 enemies with a single hit
Save Somier a second time
Visit the third Relic
Win the first Tournament
Unlock all 20 base Human Classes
Master all 6 special badge Classes
Master all 20 base Human Classes
Unlock the Spymaster Class
Defeat Lady Anquine
Defeat an enemy with a Berserk, Charmed, or Mind-Controlled enemy
Recruit Bzaro
Defeat an enemy with falling damage
Use your first Class badge
Visit the second Relic
Unlock the Demon Knight Class
Recruit Yates
Visit the first Relic
Master any Class
Drown an enemy
Unlock the Marked Class
Craft your first item
Defeat a unit with its Elemental weakness
Change Class at least once
Defeat an enemy by using a Counter Ability or Thorns
Master all 22 Monster Variants.
Complete all unique Hunts and large-scale battles.
Complete all Missions.
Enlist each of the base 18 recruitable Monster types.
Master the 3 new Human Classes.
Defeat an enemy with a Pet Effect.
Fully upgrade all 5 regions.
Complete an encounter deploying only Monsters.
Complete 100% of Missions in one region.
Build a Guild Upgrade.