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