Here is the full list of all 32 BLACKTAIL achievements.
Hunt down a Golden Imp
Defeat every fightable mushroom
Kick a shroomy back into its lair.
Squat many times
Poison the hedgehog
Turn a blue Vodnik green
Free all the rats
Complete the game
Find every Totem
Put all the Lost and Found on the shelf
Befriend either Ant Queen or Mr. Larva
Learn all the skill recipes
Learn all the Gnowlledge
Finish all the side quests
Open every Warden chest
Brew every skill of a single Hex type
Earn either the Ornithologist or the Beekeeper title
Hear a great lot of bobok gossip
Kiss all the toads and take them to the Yard
Earn the Favorite title
Fish out a few fish
See all the spider logs
Find the Mushroom Sanctuary
Brew every Special Treat
Earn the Queen title
Be either as good or as evil as possible
Smash many Root-infested vessels
Discover quite a few rose secrets
Trick the bees
Collect 32 Teeth
Collect 20 Teeth
Accept Boruta's deal