Craft the
subway system
your city deserves

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Buy Now
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What is Subway Builder?

Subway Builder is a hyperrealistic transit simulation game. Build a new subway system from the ground up while dealing with real-world constraints and costs.

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Features

Real-world passenger simulation

Real-world passenger simulation

Millions of commuters are generated from Census and Redistricter data and simulated using the same pathfinding algorithms you use. Your job is to design a route network that gets the most people to their destination as fast as possible. Juggle station placement, transfer dynamics, and train frequency to maximize ridership.

Realistic construction challenges

Realistic construction challenges

Build your system under realistic constraints and costs. Tunnels, viaducts, cut-and-cover, all have trade offs. Negotiate with real-world buildings foundations, geography and road layouts as you expand your network

In-depth analysis

In-depth analysis

Explore how individual commuters weight use various variables like wait times, transfers, income distribution, delays, and more, to pick their commute. Understand which routes, stations, and trains your commuters take and use that information to optimize your network.

Delays and disruptions

Delays and disruptions

Find the right balance between cost and time. Too many trains on a line or an overcrowded station will cause delays.

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Screenshots

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Roadmap

Public Beta Launch

October 2025Completed

Core game mechanics, city simulation, and initial city roster

General Improvements

Fall & Winter 2025In Progress

Improved visualization tools, detailed passenger flow analysis, bug fixes, and performance improvements.

International Expansion

Winter 2025Planned

Add more cities from outside of the United States. It's still being determined which countries/cities will be added but that will largely depend on data availability.

Steam Release

Spring 2026Planned

Launch on Steam with achievements and cloud saves.

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Frequently Asked Questions

  • You can view the full list of cities . More American and non-American cities will be added in the coming months.
  • $30 on subwaybuilder.com and $40 on Steam (when it launches on Steam). The Steam launch won't happen for a few months after the launch on subwaybuilder.com.
  • Windows, macOS (Intel and Apple Silicon on version 12.0 and later), and Linux. Chromebooks and mobile devices are not supported.
  • Probably. If your computer can run Google Earth on Chrome smoothly it can run Subway Builder it's a very lightweight game. It does require an internet connection to load the map tiles for the game though.
  • Like any other software, Subway Builder will automatically check for updates and download them.
  • Yes, you can transfer your license to a new device by resetting it through the reset license page.
  • I would like to, but it's agains Steam's terms of service to do so. This is because Steam expressly forbids selling Steam keys outside of Steam at prices lower than the price on Steam.

By Colin Miller