Here is the full list of all 10 Timothy and the Mysterious Forest achievements.
Not all birds are bad... or at least not when they have a full belly.
You killed the infamous tree-monster Druantyr into the Mysterious Forest.
You discovered the tunnels below the Mysterious Forest and you made some new friends.
You have read all the sourced of knowledge into the game. Maybe you're starting to understand something.
A peaceful and quiet place? It should exist somewhere. Maybe this is it?
You have discovered all the secrets of the game developers.
You have defeated Anhurtyr, the powerful desert god, after a difficult battle.
You discovered the truth about Timothy and his adventure. Perhaps it would have been better not to know anything?
You made it! You obtained all the achievements... right?
Jumping into the void is not for everyone. You certainly have a taste for exploration!