Here is the full list of all 14 Suna achievements.
Find the fat man.
Finish the game.
Unlock and watch the Secret Ending!
Collect 10 Apples.
Explore the ruins of ''The Old''.
Steal the girl's dress in the lake.
Find the Secret Cowland.
Collect 5 Apples.
Inspect the weird drawing.
Look for something on the ground near the girls in town.
Find the Saint Lidia II
Find the message in a bottle.
Find the wooden toy.
Find the Dark Crystal and solve the puzzle.