Full list of all 11 Memoranda achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Solved the puzzles in the doll maker's house.
Found the frequencies for Qardash.
Managed to get the card "signed" by Phil.
Seems like he had an appropriate name!
No one's stopping you now!
Helped the stranded sailor.
It starts with "Monkey".
Changed the music in Mizuki's home.
Found all the backer pictures.
Took every humanimal's photo.
Found the Spaghetti Man.