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