Here is the full list of all 28 Fobia - there are St. Dinfna Hotel achievements.
Finish the game 3 times
Upgrade all weapons to max level
Finish the game without taking damage
Find all the Memories
Finish the game
Survive the Underground
Defeat the Red Light (Aquiles)
Collect 50 upgrade items
Survive the Forest
Survive the Hotel
Find the bug that is not a bug
Assemble the 3 gears
Discover all the toy rabbits throughout the environments
Upgrade one weapon to max level
Collect all documents from the survivors
Discard items 5 times
Defeat the Piano Monster
Open all articulated stairs
Just that, find Jonisvaldo
Defeat the Spider Mother
Kill 10 enemies
Solve the chess puzzle
Open the storage chest
Use the flashlight for 15 minutes in a single game
Combine 4 items
Save the game 3 times
Use the night vision camera for 15 minutes in a single game
Yes, they're drawers... But not just drawers.