Here is the full list of all 16 INDIKA achievements.
Climb the fish dryer without falling
Find a pair of bast shoes
Pray while being chased by a dog
Fall off the fish dryer 5 times
Complete the cave in one prayer
Find the icon above the cave
Pray for the deceased
Drown in the river 5 times
Find the kudets
Find an indecent book
Drown in the pond 10 times
Cut off Ilya's hand
Destroy all the crates at the station
Watch the Drying Scene
Hit the piano against the walls 5 times
Drop the ladder in the tower