Here is the full list of all 16 RAM BOE achievements.
Finish the game.
Complete all the night levels.
Rank-up at least 7000 points total.
Release 100 souls.
Release 60 souls.
Complete all the day levels.
Release 20 souls.
Rank-up at leats 3000 points total.
Finish a special level on the first try.
Rank-up at least 1000 points total.
Lose on any level 25 times.
Lose on any level 10 times.
Lose the game by throwing out the wrong runestone.
Lose a game by falling off the platform.
Complete the tutorial.
Upload a level to steam workshop.