Here is the full list of all 31 My Time at Portia trophies - there are 10 bronze, 16 silver, 4 gold and 1 platinum.
Unlock all of the Trophies.
Arrive at Portia.
Register your workshop.
Pass the test to enter the Collapsed Wasteland.
Help the Portia Tree Farm be operational again.
Help fix Ack the living AI.
Help build the Portia Bridge.
Find a diamond.
Be ranked number one in a seasonal workshop ranking.
Workshop reputation reaches Level S.
Gather 50 assembly diagrams.
Expand the land area of the workshop to the maximum.
Fail at cooking 1 time.
Enter the Abandoned Ruins for the first time.
Discover 1 mysterious rooms in Abandoned Ruins.
Forced to sleep at 3:00 in the morning.
Give out a gift that the other person doesn't like.
The first photo taken with someone else.
Play the seesaw and get your playmate to catch a bird.
You missed a date.
Complete all five Dee-dee transport commissions.
Keep the spiciness of the hotpot above 85 for 10 seconds during the Winter Solstice festival.
Accept Gust's proposal.
Complete Phyllis's Dream
Opening Of The Museum
Complete South Block.
Complete the new Portia Harbor.
Finish the main storyline.