What is it?
SimWorld is a city-building simulation in the SimCity tradition. Pick empty land on a 1,000 km globe, name your city, lay roads, paint residential, commercial and industrial zones and add public services.
Grow enough and you can expand into the next plot, while other players’ cities grow on the same globe.
SimWorld is one of the city builder games online where you never place houses: buildings rise by themselves where a road is near and demand exists, and stand empty when demand drops. The globe uses real elevation at 1:40, so Everest rises 221 m. As a free city builder, it lets you try a practice city with no sign-in.
New to traffic? Warm up with Jam Buster, the traffic puzzle: short levels where one road, roundabout or one-way street clears the jam, open right away with no sign-in.
SimWorld is a city builder on one shared planet. The globe is 1,000 km around and built from real Earth elevation data at a single 1:40 scale, with no vertical exaggeration: Everest rises 221 m and Seoul to Jeju is 11.3 km. It is divided into 124,416 plots, each 200 × 200 tiles of about 8 m, roughly 1.6 km a side. Sea and rivers can't be filled; hills can be levelled for a price.
You never place houses. You draw roads, paint zones and place facilities, and buildings rise by themselves where a road is close enough and there is demand. When demand falls they stand empty instead of disappearing, and fill again when it returns. There are no pedestrians: buildings and cars move the city, and the cars are drawn from traffic flows the server calculates per road segment.
Every player shares one clock: growth is continuous, taxes and upkeep are settled at fixed intervals, and other people's cities grow on the same globe. You can go down into them, leave a guestbook note, and see from orbit which of the 20 one-of-a-kind landmarks each city has built.
Gameplay video and screens
How to play
- Log in with your GameNow account. On the globe, drag to spin and use the wheel to rise and fall.
- Click a region to select it. If it says you can settle here, type a city name and press Found it here.
- Pick [1] Street and drag a road about 25 tiles (200 m) long. Land is used only where a road reaches it.
- Click once beside a road to place [I] a wind turbine and [H] a water works. Nobody moves in without power and water.
- Drag to paint about 20 tiles of [5] Industrial beside the road, then about 40 tiles of [3] Residential on both sides.
- The city grows continuously. The guide checklist on screen shows what to do next.
Modes
- Found it here
- Logged in with GameNow, pick empty land that is at least 60% dry ground and name it. The city is saved and keeps settling while you are away; neighbouring plots open at 10,000, 26,000 and 45,000 total residents, up to four in a 2×2 block.
- Build a practice city here
- Without logging in, build on any empty land. The browser runs the same rule functions as the server, so the numbers match a real city, but there are no neighbours, expansions or landmarks, and closing the window discards it.
- Visit
- Go down into anyone's city from the globe or the 'Visit cities' list, even when the owner is offline. Brushes are disabled; logged-in visitors can leave one guestbook note of up to 120 characters per city and edit it later.
Good to know
- Homes, shops and factories feed each other; paint only one and nothing grows. The demand bars on the right show what is missing.
- Large brushes over 10 tiles ask before charging. A green preview is valid, red is blocked.
- Every shortcut and rule is in the Manual at the top, where you can also switch language.
At a glance
- Genre
- Explore & simulate
- Players
- 1+
- Price
- Free
- Available languages
- Korean · English · Japanese · Chinese · Spanish
- Platform
- Web browser (no install)
Further reading
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