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