Here is the full list of all 60 My Time at Sandrock achievements.
Clean up trash 50 times.
Won first place in the ghost hunting event.
Give 100 gifts.
Done 40 exhibits to the museum.
Give a hated gift.
Get 500 Game Center coins.
Workshop upgraded to 5 stars.
Complete 100 Commissions.
Won first place in the dance contest.
Have your workshop ranked as #1 for the month.
A whole year has gone by...
Won first place in Sandrunning.
Have a romantic relationship with any character.
Increase one person's favor by more than 20 with a single gift.
Defeat Pen in a duel.
Never going to stay up all night again...
Kick something from trees 50 times.
Chat 200 times.
Make friends with 10 people.
Pick up feces 50 times.
Find all of Mort's photos.
Repair the Water Tower.
Repair the Shonash bridge.
Open 50 chests.
Defeat 20 elite monsters.
Obtain 1 diamond.
Unlock 50 backpack slots.
Make a Hydrogel.
Win at cards 20 times.
Have 20 duels.
Get 10,000 Gols.
Got over 100 in Whack-a-Mole.
Assemble and install the Crane Lift.
Use 500 stamina in one day.
Get 10 Knowledge Points.
Successfully registered the workshop.