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