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.
Throw ten parties.
Successfully make 30 different dishes.
Have or adopt a second child.
Throw a party.
Achieve the relationship "Happy Child" with your kid.
Keep the spiciness of the hotpot above 85 for 10 seconds during the Winter Solstice festival.
Find more than 10 Ghost Badges in a single Day of Memories event.
Have or adopt a child.
Recover 15 different types of relics.
Accumulated 10 times during the Doodles mini-game where the play date is happy with the result.
Use 50 Fireworks in one setting.
Win the highest possible award in the Slots mini-game.
Finish with a over 90% accuracy rate in the Balloons mini-game.
Win at Cross Five 50 times.
Place first in five fishing competitions.
Play the seesaw and get your playmate to catch a bird.
Recognize 5 different constellations.
Win 20 games of Rock Paper Scissors in 3-0 fashion.
Complete 150 Commerce Guild commissions.
Defeated all the people that can spar in Portia.
Defeat 30 rare monsters.
Accumulated 10 meals during dates and play dates.
Have maximum Stamina reach 600.
Accumulated 10 times in the Swing mini-game where the play date is happy with the result.
Try lasso roping for 50 times.
Everyone likes you!
Complete the main storyline.
Workshop reputation reaches Level S.
Complete Phyllis's Dream
Get more than 40 Ghost Badges in Haunted Cave Exploration.
Complete the adventure in the cave with Arlo.
Accept Gust's proposal.
Accept the proposal from Mint.
Accumulatively give out 500 gifts.
Cumulatively picked up 500 feces.
Talk with other town folks over 500 times.
Clear Level 100 of the Deepest Ruins.
Meet Pa.
Used all items from the Vending Machine in the Deepest Ruins.
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.
Enter the Deepest Ruins.
Defeat the rogue knight and All Source.
Getting caught by the Sky Shark Pirates.
Achieve the best relationship with your spouse.
Encounter the rogue knight.
Pass the trials set by Ginger's family.
Place 5 advertisements in the Portia Times for the workshop.
Did I just use the Blender to mix feces...?
Adopt Scraps.
Propose to Emily in front of the Pumpkin Princess House.
Enjoy some fireworks with Dr. Xu.
Adopt Pinky.
Discover a mysterious room in Abandoned Ruins.
Gather 50 assembly diagrams.
Complete the new Portia Harbor.
Have maximum HP reach 2000.
You were at fault...
You missed a date.
Get 300 items by kicking trees.
Getting divorced.
Give out a gift that the other person doesn't like.
Fail at cooking 1 time.
Provide 100 Data Discs to the Church of the Light.
Congratulations!
Forced to sleep at 3:00 in the morning.
Unlock all backpack slots.
Complete South Block.
Expand the land area of the workshop to the maximum.
Completed 100 Inspections at the Commerce Guild.
Find a diamond.
Help build the Portia Bridge.
Be ranked number one in a seasonal workshop ranking.
Opening Of The Museum
Accumulatively give out 50 gifts that people like.
Provide 100 Data Discs to the Research Center.
Clear all the levels in any Hazardous Ruins.
Help fix Ack the living AI.
Help the Portia Tree Farm be operational again.
Complete all five Dee-dee transport commissions.
Open 50 treasure chests.
Accumulate 10,000 Gols.
Cut down 200 trees.
Gain 150 points in the Dart game.
Pick up 7 gifts during the Day of the Bright Sun event.
The first photo taken with someone else.
Pass the test to enter the Collapsed Wasteland.
Enter the Abandoned Ruins for the first time.
Register your workshop.
Arrive at Portia.