Here is the full list of all 46 BIOMUTANT achievements.
Defeat All four World Eaters
Feed the Murk Puff 10 Guppos
Discover all 16 Side Characters
Buy an Item from Honki
Discover a Twinkle Crashsite
Pull all Teeth from the Hoof Puff
Unlock all Melee Weapon Proficiency Skills
Defeat Enemies using 3 Different Tribe Weapons
Discover all 15 Old World Gadgets
Discover all 6 Tribe Forts
Defeat or Subdue all five Rival Tribe Leaders
Discover all 30 Altars
Take over 6 Tribe Outposts
Capture 20 Gumducks
Capture 20 Glittermoths
Capture 20 Guppos
Defeat 25 Bandits
Discover and enter 3 Manholes
Unlock all Gun Proficiency Skills
Ride the Googlide across all Water Resistance Levels
Capture 20 Pippis
Drown 5 Enemies in Oil during Combat
Stick 25 enemies to the Mucus Bubble
Defeat 20 Enemies using the Ki-Spark Ability
Discover all 7 Environment Biomes
Find and Equip 5 Different Googlide Upgrades
Detonate 3 Bangballs on the Porky Puff
Bounce 50 times on a Fungus
Defeat 50 Enemies using Super Wushu
Complete all 20 Conscience Dialogues
Find out what’s at the End of a Rainbow
Reach Level 25 with any Character Class
Feed the Jumbo Puff World Eater 6 Sqvips
Re-code your DNA at a Cooling Tower Biopool
Craft a 7 Star Weapon
Win a Drinking Competition against Gulp
Deal more than 1000 Damage in a Single Hit
Unlock all Automaton Upgrades
Upgrade any 2 Attributes to 100
Obtain 10 of each Crafting Resource
Capture 20 Sqvips
Find and Equip 5 Different Mekton Upgrades
Survive 5 minutes in the Mekton while in the Deadzone
Ride a Gnaut 500 meters
Possess more than 1000 Greenleaf
Escape Bunker 101