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