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