COMMON GROUNDCITY BUILDER

Up to four mayors. One shared region.

Build independently. Unite. Grow together.

Your town is just the beginning. Build a place of your own, meet your neighbours, and choose to create a bigger city together.

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Coming soon · In development

Tall downtown buildings on both sides of a river, with road bridges linking the streets.
Downtown streets. Connected by water and bridges.Actual in-game screenshot · Development build
Cooperative city buildingUp to 4 playersIndependent towns. Shared ambitions.

The foundations

Great cities start
with common ground.

A cooperative city builder where coming together is your choice. Start as independent mayors in a shared region, then turn neighbouring towns into something bigger.

01 / BUILD

A town of your own.

Begin with your own land and your own plans. Build and grow your town while up to three other mayors develop theirs in the same region.

02 / UNITE

Meet at the borders.

As your towns expand and their borders meet, propose a merger. The mayors vote on whether to bring their communities together.

03 / GROW

One city. Built together.

Combine land, money, infrastructure, power, water, and other city systems. Work together to manage and grow your new shared city.

A waterfront neighbourhood with tall buildings, a bridge, open green terrain and distant hills.
Waterfront neighbourhoods · In-game development build

From neighbours to co-builders

Your own beginnings.
A shared future.

Cooperation starts before the merger. Get to know the towns around you, then decide when you’re ready to share more than a border.

When you unite, the places you built become part of a larger city that you can build and manage together.

Read about four mayors joining forces

Inside the build

Your city. Your vision.
Our common ground.

Discover the streets, waterfronts and infrastructure you can build as your town grows within a shared region.

Actual in-game screenshots — development build. Select an image to enlarge.

A suspension bridge and wind turbines beside a harbour, with an island neighbourhood and a city skyline.
Across the harbourBridges and wind turbines frame the harbour, with city neighbourhoods beyond.
Tall downtown buildings on both sides of a river, with road bridges linking the streets.
Downtown along the riverDense downtown streets and a series of bridges follow the river through the city.
A waterfront neighbourhood with tall buildings, a bridge, open green terrain and distant hills.
Waterfront neighbourhoodsWaterfront development stretches from tall buildings toward open terrain across the water.
Cargo cranes and a ship in the port, with industrial buildings, roads and a bridge along the waterfront.
Port and industryCargo cranes, a ship and waterfront industry sit beside the city’s road network.

Screenshots show a work-in-progress build. Full-size views use the original supplied captures.

From the developer’s workbench

Follow every building block.

The experiments, milestones, and moving parts behind Common Ground: City Builder. Explore the complete Development Journal.

Read the devlog

Gameplay screenshot

Actual in-game screenshot · Development build

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