Reference
Achievements
Every achievement, what it asks for, and the rules that can lock one out for a whole save. Boss, Shell and weapon achievements link to the page for that boss, Shell or weapon.
Warning: Slayer Seal
The game asks: “Warning: equipping the Slayer Seal will disable achievements. Do you understand this?”
All 53 achievements are blocked on a save where the Slayer Seal has been equipped. Picking it up does nothing; equipping it does. The HUD then reads “Achievements Blocked”.
Skip Prologue?
“You have the option to skip the Prologue and start a new game just before your arrival at Marrow Keep.”
3 achievements are earned before that point: You're More Than a Weapon, Mid Summer? and No, You Still Can't Win. The Tar Golem one is missable on any save: if you are severed from your Shell the fight ends, and he does not return in New Game Plus.
0You're More Than a WeaponPrologueClaim your first Shell, Weapon and Sidearm
Earned in the prologue. Players who skip the prologue report it stays locked on that save.
- M0Mid Summer?Prologue
Enter the Festival
The Festival is in the prologue. The prologue skip starts after it.
- H0Home at Last
Reach Marrowkeep
- H0Haunting Times
Watch your first Shell Memory
0Deep CutsUnlock Axe and Dagger
0Big BoiUnlock Great Martyr's Blade
0Just the TipUnlock Black Needle
0Like ClockworkUnlock the Clockwork Scythe
0Stop – Hammer TimeUnlock the Obsidian Hammer
0Dual WieldingUnlock the Axatana
0Cut You Down to SizeUnlock the Veteran's Battle Axe
0SpikedUnlock the Caged Hystrix
0Old PainlessUnlock the Triarch Repeater
0Beautiful BabyUnlock the Cursed Child
0SpearedUnlock the Ballistazooka
0Chop ChopUnlock the Salvaged Trebuchaxe
0Old SchoolUnlock the Forgotten Crossbow
- B196Bring My Ova Back to Me
Collect all of the Ova
- H5Heavy Metal
Play all Lute Tracks in the Game
- U0Ultimate KarenHidden
Defeat Magdalena, the Lady of the Woods
- M0Meat's Back on the Menu, Boys!Hidden
Defeat The Lost Child
- H0HeadcaseHidden
Defeat The Nameless Captive
- N0Nightmare FuelHidden
Defeat Sir Isaac, the Scholar-Prince
- S0Something in the deep…Hidden
Defeat Hexapod
- P0Praise him!Hidden
Defeat The Monolith
- I0It burnssssssssssHidden
Defeat Droeg, the Conquerer
- G0Giga ChadHidden
Defeat Malborn Offspring
- L0Lost Your HeadHidden
Defeat Orrem, the Reclaimed
- I0It's over now?Hidden
Defeat Zmey, the Unbidden
0SesterHiddenUnlock Sester Genessa
0Forever Alone?Unlock Tiel
0Down with the ThicknessUnlock Lazlo
0Vengeance is MineUnlock Eredrim
0The AlchemistUnlock Sariel
0ArrivalUnlock Proxima
0My BretherUnlock Smert
0HeartlessUnlock Gragu
- P0Peter's Perfect ParryHidden
Perfect Guard each one of The Nameless Captive's headspins using the Untarnished Seal
Can be retried in New Game Plus.
- S73Stoned
Find all Tarstones
- D0Decked Out
Reach the maximum bonding tier for a Shell at the Shellkeeper
- O0Over 9000
Max out a Weapon at the Tarforge
- F0Feed MeHidden
Cause Egon to pass away
- S46So Fresh, So Clean
Cleanse All Beacons
- N0No, You Still Can't WinHiddenMissable
Take the Tar Golem to his Minimum Health
Prologue only. Being severed from your Shell ends the fight and moves the story on, and the Tar Golem does not return in New Game Plus. A save that skips the prologue never fights him.
- S11Sat Nav
Find all Map Fragments
- S40Seeking the Past
Watch all Shell Memories
- S8Shell Seeker
Unlock all Shells
- G8Guns. Lots of Guns
Unlock all Sidearms
- L8Lord of War
Unlock all Weapons
- A0AscensionHidden
Discover the secret of the Mango
- T0This is Not an Achievement
Complete Mortal Shell II
- N0No LiferPlayStation only
Unlock All Trophies for Mortal Shell II
PlayStation only. Steam and Xbox list 52 achievements.
- B0Bag Holder
You've mastered nothing and this is your reward. Pretty pointless, eh?
An alternate ending: accept Baghead's request near Gloomshade Grove and give him nothing.