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