Here is the full list of all 31 Oxide Room 104 achievements.
Open a lock with a pick.
Heal Matthew after being poisoned.
Get out of the motel alive.
Trap Doc in the elevator.
Find all Doc's documents.
Escape from Doc and try to get out of the motel.
Complete the game cycle without using bullets.
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.
Use some bandages to stabilize Matthew.
Use the shovel to find one of the keys.
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.
Get out of room 104's bathroom.
Go out through the door in reception.
Play the entire song.
Force open a chest or door.
Try all the endings.
Find all Eva's documents.
Find all Evil's documents.
Find all Matthew's documents.
Explore all the rooms.