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