Petra's Home

Petra's home

Originally from Ethea, Petra has been traveling all over the known world. For someone so young, she's seen and learned more than most people do in a life time. Petra has only one goal, which is to study relics left over from the past and see if they can bring telesis to society. She eventually came to Portia to study under Merlin and be closer to the Peripheries, hoping to find computer AIs from the past.


Personal SummaryEdit

Petra was born on Day 11 of Winter in Ethea. Petra likes to research old Data Discs to discover forgotten blueprints.

Petra typically disapproves the teachings of the Church, seeing as she wants to use technology to better the world. However, she does agree to the idea of destroying dangerous technology after witnessing one of the technology blast a hole on the wall at Vega 5, though she still wants to study it first.

She can often be found in the Research Center or sitting on a bench in Central Plaza. Players can bring her mysterious Data Discs and she'll gather information from them. Within a few days, one should get the results in the mailbox.

Physical AppearanceEdit

Related CharactersEdit

Petra's closest connection in Portia is Merlin, her Friend, mentor, and fellow researcher at the Research Center. Like Merlin, Petra harbors feelings of dislike toward Lee, the head of the local church who opposes the work of the Research Center.


When befriending Petra, her relationship network with other NPCs will also be affected, resulting in the player receiving or losing favor points with those NPCs as well.


Petra typically remains in the Research Center throughout the day. Near evening time, she exits the Research Center to do other activities, such as shopping at Martha's Bakery or reading a book under the tree in Central Plaza.

Some nights she can be seen at the cemetery's entrance, walking around a stone pillar for hours.

Her home is in the center of town, between the park and Dr. Xu's Clinic, and is open from 7:00 AM to 21:00 PM.

Time Location

Time Location
18:30Leaves Research Center to arrive at Martha's Bakery by 19:15.
19:15Shops at Martha's Bakery.
20:00Leaves Martha's Bakery to arrive at a bench in Central Plaza by 20:45.
20:45Reads on a bench in Central Plaza.

Time Location


Petra is one of the potential bachelorettes that the player can romance.

Upon reaching Friend status at four full hearts, the player can confess their love to her with a Heart Knot. If the confession is successful, her relationship status changes to Girlfriend. After Petra has become the player's girlfriend, upon reaching Lover status at eight full hearts, the player can then propose to her with a Wedding Ring. If the proposal is successful, her relationship status changes to Wife. Once certain other conditions have been met, Petra and the player can then try for children.

Additionally, upon meeting certain relationship levels, certain perks are rewarded.


Wife HeartHeartHeartHeartHeartHeartHeartHeartHeart 2Heart 2 +
A chance at receiving gifts first thing in the morning

Social InteractionsEdit

Interactions: Social talk Social gift Desire head icon Social RPS Social Invitation Social play Social date Social Dine Social interact Social photo Social Ride Social Relic Trade Social confession Social propose Social research Social mission

Click on the icon to go to the respective section.

Social talk ChatEdit

First meeting
  • Petra ED 001
    Hello, you're the new Builder, right? Nice ta meet you, I'm Petra.
  • Petra ED 003
    If you find anything of value from the old world, please donate it to us. You have no idea how much a discovery can change the world. Don't listen to what the Church has to say; we just want to progress towards a better world!
  • Petra ED 002
    The people in church are so stubborn! Why shouldn't we use technology from the old world? They obviously can make our lives more convenient. It really doesn't make any sense...
  • Petra ED 004
    There are many forgotten technologies from the old world. Last time, Arlo found a self-heating box. When Merlin tried heating an egg with it, it almost blew up the Research Center.
  • Petra ED 005
    I'm originally from Ethea. I came here because there are several old documents saying there exists a computer artificial intelligence called the All Source around these parts. You still see a robot or two out and about in our cities once in a while, but this All Source AI was supposed to be one of the best AIs ever created. I want to meet it!
  • Social talk Research shows, in the ruins near Portia, there's a lot of valuable contraptions from the old time and they are waiting to be discovered. It would be a pleasure to work here!
  • Social talk My teacher Merlin has to be in the top 10 anthropologists in the world. I need to work hard to catch up to him!
  • Social talk The research center can help with the optical disk you found in the ruins. There has to be something in there that you can use.
  • Social talk Hello! The research center welcomes you at all times.
  • Social talk My busy work schedule at the research center can't stop me from reading books. I'd like the books that cover a variety of subjects.

  • Mission: The Bassanio Lift: Social talk The Director and I have been trying to neutralize this pollutant, but it's proving kind of tough. It's definitely a chemical from the Old World.

  • Social talk
  • Social talk
  • Social talk

Talk about favorite foods
  • Social talk I can't stand eating uncooked vegetables, so no salads for me.
Ask about work
  • (What is it like working with Merlin?)
    • Social talk People in the Old World did something called "science," where they would have a theory, then test it out to prove or disprove it, thus gaining knowledge. We're not really do too much science now, we're more like archaeologists learning about things history forgot. I want to do "science."
  • (What is it like working at the Research Center?)
    • Social talk I get to be in constant contact with some of the most advanced relics from the Old World. There's a feeling of aw and terror at the same time, you know what I mean?
      • (What was the most awe inspiring relic you've seen?)
        • I saw a crystal globe once that could make it snow inside, with a projected picture of a couple. That was awe inspiring.
      • (What was the most terrifying relic you've seen?)
        • I saw a weapon once that tore a hole in the wall when I was at Vega 5. After that, I actually agreed with the Church's position on destroying the dangerous relics... but I still want to study them first.
Casual talk
  • Social talk I do travel a lot, but I don't really sight see too much. I'm mostly looking at all the interesting relics that people unearth. Vega 5 was very interesting! That whole city was carved from a relic.
  • (You're doing good work at the Research Center!)
    • Social talk I'm glad we're advancing human society bit by bit.
  • (You seem very smart!)
    • Social talk Thanks, I'm just a good ol' bookworm.

  • Social talk It's really nice to see you. My teacher praised me for the research progress on the optical disc.
  • Social talk Have you found any new discs recently? You gotta hand them over to me.

  • Social talk Thank you for supporting my work dear. Rediscovering the science and technology from the old times is my ultimate dream.
  • Social talk Wanna ask me out? My teacher praised me again. I might get a break tomorrow.
  • Social talk Take care, don't overwork yourself.
  • Social talk Let's head out and have some fun!
  • Social talk I'm so glad you're in my life!

  • Social talk Excuse me I'm busy. Can you get out of the way?

Winter Solstice
  • Social talk It's nice to take a day off from research once in a while.

Social gift GiftEdit

Console Note
The information below pertains to the PC version of My Time at Portia, and may differ from the console versions. Additionally, console-specific information may change in future updates.
Comments: Gifting values on non-universal gifts may currently be different on consoles.

Giving gifts to Petra affects the player's relationship with Petra. Every character has unique gift preferences.


  • Every giftable item, except for the items below, will have a Neutral (+1) effect when given to Petra.
  • Gifts given on festival days and on Petra's birthday will earn the player 2x and 3x relationship points, respectively, and will show a unique dialogue.
  • Values listed below are without The Giver skill, which gives an extra point.
  • Petra doesn't care for Ruby, Sapphire, or Topaz, unlike most
Social gift Gifting Items
Love      +20
Love      +18
Love      +15
Love      +12
Love        +10
Like        +8
Like        +6
Like        +4
Like        +3
Dislike        -1
Dislike        -2
Hate        -5
Listed values are without The Giver skill, which gives an extra point.

Gift values displayed on this chart are for the PC release of My Time at Portia and may not apply to the console releases.

Desire head icon DesiresEdit

The following items are desires, or wishes, which are randomly assigned to one or two characters per week. The player is required to be at least at Good Friend level with Petra for her to be assigned a desire. Some characters may desire an item that they do not normally like.

In the event that Petra has a desire, gifting the wanted item will provide the higher tier points; otherwise, on non-desired events, the item gives the base point value. The birthday or festival day relationship bonus applies when gifting a desired item.

Desire head icon Desires
Minimum Relationship Level Possible Desires

Good Friend

Toy Robot Toy Robot (+30)

Social RPS RPSEdit

Petra can play RPS with the player up to three times per day. Petra is eligible for Rock, Paper, Scissors.

The daily count to play is three games.


Social photo

Below is a gallery of Petra's poses in group photos.


Social Invitation InvitationEdit

Occasionally, first thing in the morning, the player may leave their house to find Petra outside, hoping to invite the player out for a date or play date.

Social play PlayEdit

Once the player has become buddies with Petra, they can schedule a play date together.

Social date DateEdit

After the player has successfully confessed how they feel to Petra, the player can schedule a romantic date with Petra.

If the player chooses to dine at The Round Table with Petra during a play date or date, it is recommended to order dishes Petra will like. If asked before ordering, Petra will sometimes tell the player exactly which dishes to order; other times, Petra will just give little hints. In the event that Petra does not specify the exact foods desired, the player should order between three and six dishes, depending on what hint Petra gives. It is recommended to order each of those dishes from different courses, ex. ordering one Appetizer, Meat, Vegetable, Dessert, and Drink course each, rather than five Desserts.

Petra's food preferences are:

Play date eat Dining
Prompt happy
Prompt sad
Menu icon appetizer
Menu icon main course
Main Course
Menu icon meat
Menu icon vegetable
Menu icon dessert
Menu icon drink

Social research ResearchEdit

Main article: Research Center

Petra's unique trait is the ability to extract data from Data Discs. After discovering a Data Disc and taking it to Petra, Petra can examine the data from the Data Disc and provide a new blueprint for the player's workshop. Petra needs a number of Data Disc per blueprint in order to extract new blueprints.

Research NotesEdit

After collecting all the blueprints available from Petra, she will speak of trading Research Notes to the player. These can be acquired at the Exchange in the Research Center for 10 Data Discs apiece.

Social interact InteractEdit

As the player develops their relationship with Petra, special interactions are unlocked, including Hug and Kiss.

Social Relic Trade Relic TradeEdit

Petra occasionally uses the Relic Pieces Exchange board at the Museum to trade for relic pieces. Petra likes to look at particular completed relics, so after the player has donated such relics to the Museum or displayed them in their yard, Petra may come visit the Museum or the player's yard to view these relics. Such visits will earn the player relationship points each time, with the amount dependent upon the relic.

Social Relic Trade
Relic Trade
Points Relics
Requested Pieces +30
Favorite Exhibits +???
Monster Toy
Monster Toy
Power Lamp
Power Lamp
Fish Sub
Fish Sub

Social mission MissionsEdit

Spoiler Alert: This section may contain spoilers. Proceed with caution!

Legend: MAPICON main2MAPICON branch2 major • MAPICON main1MAPICON branch1 minor • Social play friendship • Social date romance • Social research research

  • MAPICON main2 Main missions are listed in chronological order, based on the chronology list.
  • MAPICON branch2 Secondary missions are listed in alphabetical order.
  • Indented missions indicate succession of the previously listed mission. Further missions in its timeline are in chronological order.
  • Research missions are denoted by the Social research Data Disc icon if Petra's sole purpose is researching.

Main missionsEdit

MAPICON main2 Mysterious Data Disc
I'm not sure what this is, maybe I should go to the Research Center and ask around.
MAPICON main2 The Archaeologist
Got a piece of something when digging, go to the Research Center to ask Petra what is this.
MAPICON main1 Assemble Dee-Dee Transport
We are in need of a three-wheeled Dee-Dee vehicle for the city transportation system.
Social research Diagram for Dee-Dee Stop
Talk to Petra at the Research Center about how to make a Dee-Dee Stop sign.
Social research Panbat Infestation
Dawa's Tree Farm is currently closed due to the Panbat infestation, help him chase off the Panbats.
Social research Saving the Tree Farm
Aadit wants an Irrigation System for the recovery of the Tree Farm.
Social research Carol's Sewing Machine
Carol's old sewing machine is broken and she wants you to help her fix it. Talk with Petra to see what you can do.
Social research The Desert Wind
South Block is in need of some wind generators to generate electricity, build and install 3 of them.
Social research Balloon Bonanza
Mayor Gale wants to build a hot air balloon ride for Portia and has asked for your help. Find Petra, maybe she can help you with what you need.
Social research Long-Haul Bus
We're in need of a Long-Haul Bus for the newly opened Portia to Sandrock route.
Social research To Light the Way
Talk to Petra about the construction of the lighthouse.
Social research The Harbor Crane
A mechanical crane is needed for the new Portia port. Albert suggested that you consult with Petra first.
MAPICON main1 The Burnt Warehouse
A warehouse has been burned and the air cooling relic inside was destroyed. Albert wants the player to help make a new cooling unit. Talk with Petra first.
Social research Hot Springs Retreat
Gale hopes that you can help build the Hot Springs Retreat on the Western Heights. Wait for Albert's commission in the mail.
Social research A Boat to Starlight
We're in need of one propeller-less boat for travel to Starlight Island. The boat must be propeller-less! Check with the Research Center to see what they can come up with.
Social research The First Key
Ursula wants you to enter the ruins of the logging yard to help see and open the door that cannot be blasted in the ruins.
Social research The Landing Gear
An airplane requires a Landing Gear. Ask Petra about how to acquire it.
Social research Power for All Source
All Source's power supply was damaged during the battle with the Rogue Knight. You need to help her rebuild one.

Secondary missionsEdit

MAPICON branch1 An Interview with the Research Center
Mei would like to do an interview with the Research Center. She needs you to take pictures.
Social research Construction Crane
Albert needs your help to build a Construction Crane to construct the Portia Museum.
MAPICON branch1 Chip Upgrades
Ack seems to have something to say about his tasks.
Social research Emily's Well
Emily has asked you to build a well and a water pump. She would also like a water storage. Talk with Petra about the well and water pump designs.
MAPICON branch1 Finding Happiness
Ack seems down, talk with the Mayor to see if you can do anything for him.
MAPICON branch1 Flowers for Mother
Help Gust collect some Hibiscus Flowers.
Social research Made Whole Again
Ack's temporary leg is no longer able to support him. Help him build a new leg.
Social research Read All About It!
Find a way to help Mei speed up the production at Portia Times.
MAPICON branch2 Stories of the Old World
Petra's also interested in non-technological items from the Old World, if you find any in the ruins, show it to her.
MAPICON branch1 The Secret of Planting
After the Autumn Festival, Emily wants to find a bigger fruit crop to plant, help her find the seed.

Romance missionsEdit

Social date Stories of Petra
Petra lost an item but is too embarrassed to tell you what it is. Go to her usual spots to see if you can help her find it.
This mission triggers after Stories of the Old World.
Social date Stories of Togetherness
Petra left some hints with other people for a message to you. You'll need to talk to a them to figure out what the message is.
This mission triggers after Stories of Petra.


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