Here is the full list of all 31 Oxide Room 104 achievements.
Get out of the motel alive.
Find all Doc's documents.
Trap Doc in the elevator.
Escape from Doc and try to get out of the motel.
Go out through the door in reception.
Get out of the kitchen alive.
Get out through the restaurant.
Don't use the fireplace in the restaurant.
Avoid Evil in reception.
Go through the common areas to get to reception.
Go into the common areas.
Get out of the room on the third floor.
Get to the motel's third floor.
Find the way to the exit.
Heal Matthew after being poisoned.
Use some bandages to stabilize Matthew.
Wait for the right time in the storage room.
Escape from Evil to get to the storage room.
Get out of 104 without forcing anything open or hurting yourself.
Get out of room 104.
Open a lock with a pick.
Get out of room 104's bathroom.
Force open a chest or door.
Play the entire song.
Use the shovel to find one of the keys.
Complete the game cycle without using bullets.
Try all the endings.
Find all Eva's documents.
Find all Evil's documents.
Find all Matthew's documents.
Explore all the rooms.