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