Here is the full list of all 91 My Time At Portia achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Complete all five Dee-dee transport commissions.
Win the highest possible award in the Slots mini-game.
Win 20 games of Rock Paper Scissors in 3-0 fashion.
Win at Cross Five 50 times.
Have or adopt a second child.
Achieve the relationship "Happy Child" with your kid.
Have or adopt a child.
Accept Gust's proposal.
Clear Level 100 of the Deepest Ruins.
Accept the proposal from Mint.
Complete Phyllis's Dream
You were at fault...
Complete the adventure in the cave with Arlo.
Recognize 5 different constellations.
Used all items from the Vending Machine in the Deepest Ruins.
Get to Level 50 of the Deepest Ruins without using Vending Machines.
Clear Level 50 of the Deepest Ruins.
Forced to sleep at 3:00 in the morning.
Clear Level 10 of the Deepest Ruins.
Complete 150 Commerce Guild commissions.
Defeat 30 rare monsters.
Complete the main storyline.
Pass the trials set by Ginger's family.
Expand the land area of the workshop to the maximum.
Meet Pa.
Enter the Deepest Ruins.
Defeat the rogue knight and All Source.
Getting caught by the Sky Shark Pirates.
Have maximum Stamina reach 600.
Be ranked number one in a seasonal workshop ranking.
Getting divorced.
Have maximum HP reach 2000.
Workshop reputation reaches Level S.
Encounter the rogue knight.
Unlock all backpack slots.
Provide 100 Data Discs to the Church of the Light.
Achieve the best relationship with your spouse.
Congratulations!
Propose to Emily in front of the Pumpkin Princess House.
Recover 15 different types of relics.
Gather 50 assembly diagrams.
Complete the new Portia Harbor.
Find more than 10 Ghost Badges in a single Day of Memories event.
Throw ten parties.
Accumulatively give out 500 gifts.
Everyone likes you!
Cumulatively picked up 500 feces.
Throw a party.
Complete South Block.
Completed 100 Inspections at the Commerce Guild.
Place first in five fishing competitions.
Successfully make 30 different dishes.
Defeated all the people that can spar in Portia.
Keep the spiciness of the hotpot above 85 for 10 seconds during the Winter Solstice festival.
Enjoy some fireworks with Dr. Xu.
Get 300 items by kicking trees.
Try lasso roping for 50 times.
Find a diamond.
Help build the Portia Bridge.
Opening Of The Museum
Accumulated 10 times during the Doodles mini-game where the play date is happy with the result.
Accumulated 10 meals during dates and play dates.
Play the seesaw and get your playmate to catch a bird.
Place 5 advertisements in the Portia Times for the workshop.
Adopt Scraps.
Clear all the levels in any Hazardous Ruins.
Talk with other town folks over 500 times.
Help fix Ack the living AI.
Accumulated 10 times in the Swing mini-game where the play date is happy with the result.
Open 50 treasure chests.
Help the Portia Tree Farm be operational again.
Use 50 Fireworks in one setting.
Accumulatively give out 50 gifts that people like.
Provide 100 Data Discs to the Research Center.
You missed a date.
Get more than 40 Ghost Badges in Haunted Cave Exploration.
Fail at cooking 1 time.
Finish with a over 90% accuracy rate in the Balloons mini-game.
Gain 150 points in the Dart game.
Cut down 200 trees.
Did I just use the Blender to mix feces...?
Adopt Pinky.
The first photo taken with someone else.
Pick up 7 gifts during the Day of the Bright Sun event.
Pass the test to enter the Collapsed Wasteland.
Accumulate 10,000 Gols.
Give out a gift that the other person doesn't like.
Discover a mysterious room in Abandoned Ruins.
Enter the Abandoned Ruins for the first time.
Register your workshop.
Arrive at Portia.