A tower of shifting stone piers with an open crown, rising over Samseong-dong at golden hour

00A city builder about one city

Mulju물주

Design every building yourself on the streets of Seoul. Start with a one-room office on a hillside, finish with your name on a tower above Gangnam.

See the districtsSteam page opens soon

01The game

Every house starts with someone who needs it

A baker on the slope under Namsan. A family in a hanok alley. A fashion house in Cheongdam. Each client brings an order: how many floors, how much floor area, a shopfront, a budget. You design the building, and the street judges it.

  1. The order

    Read what the client wants and what the plot allows. One wants a roof terrace, one wants it under budget, one wants a view of the tower kept clear.

  2. The design

    Draw volumes, push walls, carve loggias and paint facades straight onto the building. There is no catalogue of ready-made houses.

  3. The build

    Watch it go up from the dig to the lights. Record the timelapse and keep the video.

  4. The street

    The house stays on the street. Neighbours keep or lose their winter sun, people walk in, and your studio earns its next order.

A brick house with tall slot windows and a glass top floor on a hillside street in Haebangchon
HaebangchonYongsan-gu37.543 N 126.986 EPlot 2

02The editor

No limits. Like Seoul.

Seoul has no single style, so neither does Mulju. Build to the edge of the plot and as high as you dare. The only limits are your client's budget and your neighbours' sunlight.

The Mulju editor: the windows brush changing one bay of a facade, with the brush settings on the right
The windows brushOne bay at a time

Push

Grab a wall and drag it out. Grab the roof and pull up more floors. Type a number for an exact size.

Paint

Pick a material and brush it on, one bay or a whole floor at a time. Brick below, travertine above, copper on the corner.

Windows

Small, tall, arched, ribbon, glass to the floor or a shopfront. Bigger here, smaller there.

Carve

Drag across a wall to cut loggias, arcades and gates. Drag on the roof for a terrace. Hold Ctrl to set the whole ground floor back.

  • A tower of dark glass with deep vertical finsGlass fins
  • A tower of stone piers that shift every few floors, with an open crown above the roofShifting stone piers
  • A tower wrapped in a deep white frame gridDeep frame grid
  • A corten box with windows scattered across its wallsCorten, scattered windows

51wall materials, from board-formed concrete to copper

16window brushes for any bay of any floor

12facade systems, from glass fins to hanok timber

26add-ons: awnings, laundry, air-con units, rooftop signs

03Seoul

Sixteen districts, five chapters

From the hillside villages under Namsan to the towers of Samseong-dong. Every district looks, sounds and plays its own way, and each one opens when you finish the one before. 46 hand-made orders, then the whole city starts calling.

  1. Chapter 1The hills

    Neighbours keep their winter sun. Build up the slope without taking it from them.

    • Haebangchon해방촌Hillside village · 3 orders
    • Huam-dong후암동Under the tower · 3 orders
    • Ihwa이화동Mural village · 3 orders

  2. Chapter 2Markets and the old town

    Money and old rules: clients name their budgets, and Bukchon keeps its tiled roofs and roofline.

    • Mangwon망원Market streets · 3 orders
    • Yeonnam-dong연남동Cafés and bikes · 4 orders
    • Bukchon북촌Hanok rules · 3 orders
    • Ikseon-dong익선동Hanok alleys · 3 orders

  3. Chapter 3Factories and the river

    You choose what to build: workshops, offices, flagships. The market pays.

    • Seongsu성수Old factories · 3 orders
    • Mullae-dong문래동Steel workshops · 3 orders
    • Euljiro을지로Print shops · 3 orders
    • Yeouido여의도Towers by the river · 3 orders

  4. Chapter 4Gangnam

    Bid against the big groups for the best plots in Seoul.

    • Garosu-gil가로수길Boutique street · 3 orders
    • Cheongdam-dong청담동Quiet money · 3 orders
    • Jamsil잠실The big mall · 3 orders
    • Samseong-dong삼성동The finale · 3 orders

  5. Chapter 5All of Seoul

    Clients from every corner of the city, one after another. It never ends.

    • All of Seoul서울 전역Endless orders
Tiled hanok roofs around a courtyard in Bukchon
BukchonJongno-gu37.582 N 126.983 E
A red-brick factory with arched windows and a glass box on top in Seongsu
SeongsuSeongdong-gu37.544 N 127.056 E
Shop signs glowing along a narrow street in Euljiro at night
EuljiroJung-gu37.566 N 126.991 E

04Your studio

From a one-room office to a group

Clients pay in won and your reputation grows with every house the street keeps. Buy a plot of your own, build it and sell it. In Gangnam, bid against the big groups for the best land in Seoul.

  1. 1인 사무소

    Solo office

    Volumes, floors and cuts: draw a house and pull it into shape.

  2. 스튜디오

    Studio

    Your first plot: buy it with your capital, build it, sell it.

  3. 건설사

    Construction company

    Podium and tower: stack big buildings floor by floor.

  4. 그룹

    Group

    Atriums and supertall towers.

Mangwon at night: lit shopfronts under a white frame grid building
MangwonMapo-gu37.558 N 126.906 ENight

05The street

The street remembers

Winter sun
Every neighbour window counts its hours of winter sun. Take too many and the street will not forget it.
People and cats
Residents walk past, sit on the steps and go into your shops. Stray cats own the alleys.
Night
Light the facade your way: windows, washes, neon lines, media walls, a crown on the roof.
Sound
Every district has its own soundscape. The music is by Horhi.

06Release

Coming to Steam

The Steam page opens soon. Until then, this is the place to look in on Seoul.