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