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