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 the Kinship ending
Get all Achievements
Defeat Shidra
Get the Weakness ending
Acquire all Outfits
Acquire all Weapons
Unlock all Nervepasses
Accept all of the Coda's Gifts
Acquire all Hunt Points
Activate all Beacons
Witness the Final Performance
Reach Max Breath Capacity
Defeat the Artisan of Flesh
Defeat Misbegotten Amalgam
Unlock the Barrier Door
Have the final interaction with Yon
Defeat the Grieving Rockgiant
Discover all Traits
Defeat Shapely Fidus
Fully Upgrade a Weapon
Discover all Prey
Defeat Vulture
Defeat the Jawcrab
Pull down Prey
Reach Level 30
Defeat the Jawstag
Defeat the Desert Watcher
Defeat the Whispering Mothers
Defeat the Harmless Rockgiant
Absorb 100 Prey
Defeat Amalgam
Reach 100 Ardor
Acquire a Hunt Point
Discover a Trait
Activate a Surrogate
Obtain all Fetal Pearls