One region. Four ways to move it.

FLOWLINE is a minimalist transport puzzle about building one interconnected network across a constantly growing region.

Draw roads. Place stations. Connect cities. Keep everything flowing.

What starts with a handful of roads gradually grows into a sprawling system of roads, metro lines, regional railways and air routes.

The challenge isn't managing every vehicle.

You build the network. The network does the rest.

Passengers find their own way through the infrastructure you create. A single journey might begin by road, transfer onto the metro, continue by regional rail and eventually cross the map by air.

As towns grow into cities and cities merge into one enormous region, every solution creates new pressure somewhere else.

A new metro line might clear a traffic jam.

That metro line might overload its central station.

A railway might fix the station.

The railway might turn another interchange into your next bottleneck.

There are no budgets, timetables or complicated management screens.

Just a growing map, limited infrastructure and one question:

Can you keep it moving?

Build one connected system

 Roads — flexible and essential for local journeys.

 Metro — move large numbers of passengers through dense cities.

 Regional Rail — connect distant population centres with high-capacity routes.

 Air — link the farthest parts of your growing region.

Passengers transfer automatically between them.

Simple controls. Complicated consequences.

FLOWLINE is built around a simple idea:

DRAW · PLACE · CONNECT · UPGRADE

There are no schedules to configure, vehicles to purchase individually or traffic lights to program.

The complexity comes from how your network grows and interacts.

Keep up with the region

New homes appear.

Destinations spread outward.

Small towns become cities.

New population centres emerge further away.

Every week brings new infrastructure choices, forcing you to decide where your network needs help most.

Build another connection.

Increase capacity.

Create a new hub.

Or gamble that the current network can survive one more week.

Eventually, something will break.

Queues grow.

Roads clog.

Stations fill.

Transfers back up.

Solve the bottleneck quickly enough and the network recovers.

Ignore it for too long and the entire system collapses.

Then start again with a new region — and build it better.