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