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