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