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