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