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