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