Here is the full list of all 47 GRIME achievements.
The base game contains 35 achievements, and there are 3 DLC packs containing 12 achievements.
Get all Achievements
Acquire all Outfits
Accept all of the Coda's Gifts
Acquire all Weapons
Get the Kinship ending
Discover all Traits
Defeat Shidra
Get the Weakness ending
Activate all Beacons
Witness the Final Performance
Unlock all Nervepasses
Acquire all Hunt Points
Unlock the Barrier Door
Have the final interaction with Yon
Discover all Prey
Reach Max Breath Capacity
Defeat the Artisan of Flesh
Defeat Shapely Fidus
Defeat the Grieving Rockgiant
Fully Upgrade a Weapon
Defeat Misbegotten Amalgam
Defeat the Jawstag
Defeat the Desert Watcher
Reach Level 30
Defeat Vulture
Defeat the Jawcrab
Pull down Prey
Absorb 100 Prey
Defeat the Whispering Mothers
Defeat the Harmless Rockgiant
Defeat Amalgam
Reach 100 Ardor
Acquire a Hunt Point
Discover a Trait
Activate a Surrogate
Obtain all Fetal Pearls