Here is the full list of all 33 LoFi Hotel achievements.
Jon joined the party
Candice Joined the party!
Ritchie joined the party
You removed the pink mist
You removed the blue mist
You have 500 gems
You have 999 gems.
You found a spirit
You found your first secret song
You got all songs
Time to say goodbye
You discovered a favorite song
You found all guests