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