Here is the full list of all 31 Sonya: The Great Adventure achievements.
Complete the organ minigame without skip
Rescue the wolf cubs
Complete the bridge minigame without skip
Get rid of the red darkness on the bridge
Find the way in the forest
Make protective glasses
Complete Tutorial
Get rid of the darkness in the living room
Combine two items to gain a third
Get rid of the violet darkness on the tree
Complete the pirate chest minigame without skip
Find the secret pass behind the fireplace
Cook the magic potion to move the roots
Complete the safe door minigame without skip
Complete the constellation minigame without skip
Open the door in the gallery
Complete the atom minigame without skip
Make the restoring potion
Find and open all portals
Restore the broken green orb
Defeat the dark lord
Watch all cut scenes in the game
Complete the gear minigame without skip
Reach the other side of the cliff
Complete the electric box minigame without skip
Drive away the spider
Fix the flying machine
Come back home
Complete all minigames without skip
Complete all HOGs without hint
Complete the whole game without a hint