Here is the full list of all 13 From Beyond Prologue achievements.
You made it to the bottom of the cliff.
Explore all paths in the forest
Attempt to kill the puppies
Collect the apple.
Pick up the short sword. Look at the short sword in inventory.
Feed apple to Dumbo.
The player has their first ghost encounter at the priest’s house.
Never attempt to or succeed at hurting any wolves.
Find and read all written materials.
Experience death, any type the same or different five times.
Experience death, nine times.
Collect all the keys in the game.
Complete the pillar puzzle.