Here is the full list of all 17 A Date with Death achievements.
Interact with your favorite furry (or otherwise) pet as soon as possible.
Learn your neighbors secrets.
Have your sprout grow beautiful flowers.
Complete day 6.
Complete day 5.
Complete day 4.
Complete day 3.
Complete day 2.
Complete day 1.
Water your plant.
Create your first MC!
See the 'wedding' end.
Don't trust Grim.
Lose the bet.
Win the bet.
Show great patience.
Kill your plant by day 7.