Here is the full list of all 18 Between Me and The Night achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Let the Keykeeper catch you while holding the hall pass.
Listen to all the cassettes.
Clean up the broken objects in the apartment.
Complete the Thunder Rangers poster in the High School.
Complete the house without being caught by any ghost.
Put all the soldier and knight toys in their respective bases, in the House.
Complete level 3 of Generic Knight.
Finish the game.
Finish the apartment level.
Find the 3 strange medicine bottles.
Finish the high school level.
Get to the end of 1000 Knights.
Don’t get hit by enemies while in the Otherworld.
Finish the house level.
Enter the Otherworld for the first time.
Finish the tutorial.