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