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