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