Along the Line沿線
中文版Beta opens Oct 31
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RAILWAY & CITY-BUILDING SIMULATION

Let the city
grow along the line.

沿線

Lay track, plan your services, and connect towns to everyday life.
Build your own railway world on iPhone and iPad.

TESTFLIGHTOpen beta Oct 31
Discover the game
iPhoneiPadEnglish · 繁體中文

Along the Line · Trailer (Chinese captions)00:35

01 / FEATURESBUILD. CONNECT. GROW.

The railway is the cause.
The city is the result.

From your first stretch of track to a complete network,
every decision shapes life along the line.

01 / BUILD

Build it your way.

Lay straight and curved track freely, with switches, loops, viaducts and tunnels, and take the railway wherever you imagine.

YOUR RAILWAY
02 / OPERATE

A plan for every train.

Set stops, timetables and headways. Adjust your fleet to carry the different demand of peak and off-peak hours.

YOUR TIMETABLE
03 / GROW

Watch the city change.

Connections bring passengers and growth. See buildings rise and land values shift along your lines as you run your railway company.

YOUR CITY

AND MORE

  • Timetables & automatic dispatch
  • Boarding, alighting & train capacity
  • Fares & daily accounts
  • Real rolling-stock acceleration
  • Route reservation, passing & crossing
  • Interactive tutorial
02 / SCREENSSEE THE CITY MOVE

See the city change,
right on the map.

Switch between travel demand, land value, land use and population layers to see what your railway brings to the places it serves.

  • Travel demand layer: around Keelung, Ruifang and Pingxi, blocks of blue, green and yellow around each station show demand at 8 a.m.
    Travel demandTrips starting in each square kilometre, hour by hour
  • Land value layer: shades of yellow show the value per square metre along the same lines
    Land valueValue per square metre; tap a cell for the breakdown
  • Land use layer: green, blue and orange cells mark residential, commercial and office land around the stations
    Land useResidential, commercial and office, from low-rise to high-rise
  • Population grid layer: central Keelung is darkest, with population thinning out towards Pingxi
    Population gridPeople per square kilometre on real-world maps
  • Demand change layer: shades of red around stations show demand rising
    Demand changeHow travel demand rises or falls from the hour before
  • Main menu, shown in Traditional Chinese: new game, real-world map, tutorial, demo map, import save and real-world demo map
    Main menuBlank maps, real-world maps, tutorial and demo maps

Screens from an iPhone running a development beta, shown in Chinese; content may change.
Maps: Apple Maps. Railways: MOTC TDX, © OpenStreetMap contributors. Population: WorldPop (CC BY 4.0). All data sources

03 / ABOUTA WORLD ALONG THE TRACKS
The official Along the Line icon: a teal track looping around dark blue city buildings

Along the Line

沿線

From a blank map
to railways you know.

Start from scratch on a blank map, or build on real-world maps of real places. Learn to build and operate step by step in the tutorial, or watch a working network in the demo maps.

The real-world demo includes Taiwan’s Pingxi, Yilan and Shen’ao lines, so railways you know can be another place to begin.

The game is still in development; content and screens may change between beta builds.

04 / TESTFLIGHT BETATHE NEXT STOP

OCTOBER 31, 2026

Open beta
on 10/31.

The first train is almost ready to leave.
Come and step into the world of Along the Line.

The beta invitation link will be posted on this siteInstall TestFlight now and get your iPhone or iPad ready.
Get TestFlight on the App Store (opens in a new window)

Before you board

How do I join the beta?

Install Apple’s TestFlight on your iPhone or iPad. When the beta opens on October 31, come back to this site for the invitation and install Along the Line from the invitation link.

Which devices are supported?

Along the Line is built for iPhone and iPad, and currently requires iOS / iPadOS 17 or later. Check TestFlight for the exact requirements of each beta build.

Is the game in English?

Yes. The game supports English and Traditional Chinese and follows your device language. You can also change the language for this app alone in the Settings app.

Can I download it from the App Store yet?

Not yet. The game opens first as a TestFlight beta. App Store details will be announced when they are confirmed.

Does the game collect my data?

Along the Line needs no account and has no ads or tracking. Your saves and settings stay on your device. See the Privacy Policy for details.

How do I report a problem?

During the beta you can send feedback and screenshots straight from TestFlight, or email support@alongthelinegame.com. See the Support page for more.