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