Nightmare Fuel
No public description is available.
Uncommon35.8%last reported global rate
Steam
Mortal Shell II Achievements
Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.
Total achievements53
Rarest rate4.70%
Ultra rare0
Last checkedSep 10, 2026
Delayed official data
Rates and award counts were last observed on Sep 10, 2026.
Down with the Thickness
Unlock Lazlo
Uncommon37.7%last reported global rate
Speared
Unlock the Ballistazooka
Uncommon38.2%last reported global rate
Beautiful Baby
Unlock the Cursed Child
Uncommon38.9%last reported global rate
It burnssssssssss
No public description is available.
Uncommon38.9%last reported global rate
Something in the deep...
No public description is available.
Uncommon39.1%last reported global rate
Sester
No public description is available.
Uncommon39.7%last reported global rate
Over 9000
Max out a Weapon at the Tarforge
Uncommon40.2%last reported global rate
Stop - Hammer Time
Unlock the Obsidian Hammer
Uncommon40.4%last reported global rate
The Alchemist
Unlock Sariel
Uncommon42.0%last reported global rate
Spiked
Unlock the Caged Hystrix
Uncommon42.5%last reported global rate
Like Clockwork
Unlock the Clockwork Scythe
Uncommon42.7%last reported global rate
Old Painless
Unlock the Triarch Repeater
Uncommon44.7%last reported global rate
Point Taken
Unlock Black Needle
Uncommon45.2%last reported global rate
Dual Wielding
Unlock the Axatana
Uncommon49.3%last reported global rate
Headcase
No public description is available.
Common50.0%last reported global rate
Chop Chop
Unlock the Salvaged Trebuchaxe
Common51.9%last reported global rate
Heartless
Unlock Gragu
Common52.1%last reported global rate
Decked Out
Reach the maximum bonding tier for a Shell at the Shellkeeper
Common53.0%last reported global rate
My Brether
Unlock Smert
Common53.9%last reported global rate