Here is the full list of all 21 TOHU achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Let them eat
Move from the past to the future
Try all moles combinations
Click on the claw
Enter credits page
Try to apply the glove on a hand
Go 5 times into the fog
Let the Samurai to spot you 5 times
Make the trader to run 3 times
Complete the game
Create the radio gun
Talk with all characters
Collect all creatures
Listen to all the musicians tracks
Drop the pirate into the water
Click on any of 9 birds
Enter the correct code
Give the wrong potion to the prisoner
Fall down
Click on amanitas two times
Click on the rat two times