Here is the full list of all 50 Dyztopia: Post-Human RPG achievements.
You beat the Prologue! Things are just getting started.
You beat Easy! Congrats!
You beat Dyztopia the way it was intended.
You've suffered through the worst of Dyztopia.
You defeated your shop keeper. Nice.
Give someone the wrong idea.
Forgave and forgot
Beat all the battles in the Battle Lab
Recruited the Prisoner of Pon Pon
You found Aquarius's true form.
No hard feelings.
Maximized Libra's Sync
The hardest challenge in the Game
Defeated Aries with a perfect Score.
Defeated Cancer with a perfect Score.
Defeated Capricorn with a perfect Score.
Defeated Leo with a perfect Score.
Defeated Libra with a perfect Score.
Defeated Pisces with a perfect Score.
Defeated Sagittarius with a perfect Score.
Defeated Scorpio with a perfect Score.
Defeated Taurus with a perfect Score.
Got all four constellations to appear in the ending
Got a perfect score in the "Love Sho"