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