C

Changelog

View the latest updates and changes to Subway Builder

v1.0.0

2026-02-06

Subway Builder is out of beta! Modding support and tons of quality-of-life improvements.

New Feature

Modding API v1.0! Create custom cities, train types, and more. Go to Settings → Mods to enable installed mods. Place mods in your mods folder (next to your saves folder).

New Feature

Timelapse Generator: Watch your network grow and export as GIF. Access from Escape Menu → Timelapse, or right-click any save file.

New Feature

Play time counter to track how long you've spent building your transit network.

Improvement

Decreased pathfinding lag by increasing size of all commuter populations to 200. When opening pre-0.11.3 saves, demand data will be paired to the wrong locations initially, but this resolves itself after letting the game run for a day.

Improvement

Better UI/UX sounds. Adjust or mute in Settings.

Improvement

High performance GPU settings to use more GPU resources for smoother rendering.

Improvement

Save overwrite confirmation: You'll now be asked before replacing an existing save.

Improvement

Smoother page transitions and faster loading screens.

Improvement

56 new newspaper articles with authentic local paper voices for each city.

Improvement

Light metro now runs at 100 km/h to match real REM specifications.

Improvement

Hover over tracks when the track speed layer is enabled to see their elevation and speed limits.

Improvement

Slightly increased light metro track costs to balance gameplay and align with realistic costs.

Improvement

Placing blueprint tracks on very large maps is now faster.

Improvement

Route stations list now shows transfers to routes in the same station group.

Improvement

~10% decrease in simulation lag for very large maps.

Improvement

Some public transport related buildings have been removed from the map so you don't need to pay to demolish them.

Improvement

Construction settings persist after closing a map.

Bug Fix

Fixed a bug that broke the ability to switch save files without restarting the app.

Bug Fix

Fixed saves getting stuck when loading a save with no routes.

Bug Fix

Fixed window close button (X) not prompting to save on macOS.

Bug Fix

Fixed building layer overlap rendering issues.

Bug Fix

Fixed imperial units not displaying correctly in build mode.

Bug Fix

Fixed building foundation key not updating on zoom.

Bug Fix

Fixed drag and drop for route groups not working with custom route group colors.

Bug Fix

Fixed discrepancy in the list of hours by demand level used for train scheduling.

Bug Fix

Fixed Windows not rendering country flags on home page.

Bug Fix

Fixed "coordinates must contain numbers" bug when building some blueprints.

Bug Fix

Stopped a bug sometimes causing undelete-able tracks to be created.

Bug Fix

Fixed transfers being counted twice when viewing number of riders by station in a route.

Bug Fix

Fixed route colors breaking when cancelling in-progress edits of route changes.

Bug Fix

Fixed bug that broke some track deletion with an error message like "Can't delete tracks. End station not found for stNodeId"

Bug Fix

Fixed bug breaking construction when trying to build very large blueprint tracks.

Bug Fix

Several other stability and performance improvements.

v0.11.2

2026-01-16

Improvement

Added note on "nearby stations" to show if the distance between stations is short enough that pops will consider transferring

Improvement

Slightly increased light metro track costs to balance gameplay and line up with realistic costs

Improvement

Minor UI change to bottom bar

Improvement

Terms of service/privacy policy update

Bug Fix

Fixed building foundation key not updating on zoom

Bug Fix

Fixed drag and drop for route groups not working with custom route group colors

Bug Fix

Fixed discrepancy in the list of hours by demand level used for train scheduling

Bug Fix

Fixed Windows not rendering country flags

Bug Fix

Fixed "coordinates must contain numbers" bug when building some blueprints

Bug Fix

Stopped a bug sometimes causing undelete-able tracks to be created

Bug Fix

Fixed transfers being counted twice when viewing number of riders by station in a route

Bug Fix

Fixed route colors breaking when cancelling in-progress edits of route changes

v0.11.0

2025-12-10

This may be the last update for 2025 as most of the developers will be taking the remainder of December off. Merry Christmas and happy Hanukkah! 🎄

New Feature

British cities 🇬🇧! London, Manchester, Liverpool, Birmingham, and Newcastle.

New Feature

New American cities too: Columbus and Milwaukee.

v0.10.0

2025-12-04

New Feature

Phoenix! Other cities are coming soon. Technical issues with Los Angeles are being worked on.

New Feature

Station/station group/route ridership by hour charts

New Feature

Option to see financial stats for last 48 hours

New Feature

Arrows on tracks indicating direction

New Feature

Page up/page down shortcut for changing track elevation in build mode

New Feature

Buy more train cars faster by holding shift and pressing the +/- buttons in the buy trains panel

New Feature

Manual route ordering so you can do stuff like creating Chicago loop-style routes (experimental)

New Feature

Ability to change text color for route bullets

New Feature

Another preset custom map color theme

New Feature

Q and E keys can be used to rotate the map

Improvement

Lower bond interest rates for easier early/mid-game play-throughs

Improvement

Removed bonds from operational financial numbers

Improvement

Include bonds in bank balance

Improvement

Unbundled city data from the application bundle so it's downloaded separately

Improvement

Smoother map movements with WASD keys

Improvement

Made map layers panel scrollable

Bug Fix

Patched bug that broke modded cities in the Southern Hemisphere

Bug Fix

Fixed the "export game" button on the main save menu

Bug Fix

Fixed pinned demand stats view getting stuck

Bug Fix

Fixed glitch where station labels would move to weird places right after editing

Bug Fix

Fixed station group stats not adding up sometimes

Bug Fix

Fixed new games not working after running another game in the same session

v0.9.0

2025-11-21

New Feature

Autosave feature with various other improvements to the save system

New Feature

Game save route map thumbnails

New Feature

Experimental setting to show interlined routes on the map side-by-side

New Feature

More keyboard shortcuts that can be customized

New Feature

Ability to view a pop's mode choice breakdown by income level

New Feature

Hold shift and drag over the demand stats view to see the origins/destinations of multiple selected points

New Feature

Airport taxiways/runways

New Feature

Tracking time spent in-game so you can see how addicted you are

Improvement

Much smarter pathfinding. No more backtracking or not detecting transfers.

Improvement

Fewer lag spikes while simulating large maps

Improvement

Better color picker styling

Improvement

Made bonds unlock with higher revenue instead of profit

Improvement

Less laggy station/route ridership panels

Improvement

Stopped flash banging dark mode users on app start

Improvement

More and better newspaper articles

Improvement

More distinguishable dark mode colors

Improvement

Roads don't fade away when zoomed out if the construction panel is open

Bug Fix

Fixed "Station not found from stNodeId" crash

Bug Fix

Fixed stuck pops bug

Bug Fix

Fixed bug that would sometimes cause new tracks to not bend at an angle to match the tracks they’re connected to

Bug Fix

Fixed saves not storing the number of owned train cars

Bug Fix

Fixed train capacity warnings being duplicated

v0.8.0

2025-11-04

New Feature

Ocean/river floor elevations for additional real-world costs and constraints to construction (East Coast only for now)

New Feature

Bonds/loans to help early-game

New Feature

Road labels

New Feature

Custom map colors

Improvement

Editing routes is much faster now

Improvement

Station names are automatically chosen based on cross streets instead of the closest streets

Improvement

20% faster pop pathfinding calculations

Improvement

Better input form for custom route colors (no more manually inputting hex codes)

Bug Fix

Fixed stuck pops bug

Bug Fix

Fixed bug causing cursor movement-induced lag

Bug Fix

Fixed saves not storing the number of owned vehicles

Bug Fix

Fixed train capacity warnings being duplicated

v0.7.6

2025-10-27

The 0.7.6 release has been delayed for Mac, and all changes to the game on MacOS have been pushed to 0.8.0 due to compatibility issues with Intel Macs.

New Feature

Spanish & French language support

New Feature

Full screen support on Windows

Improvement

Pinned demand bubbles are now transparent

Bug Fix

Patched bug causing a white line to infinity to appear when drawing tracks

Bug Fix

Disabled mouse forward/backwards buttons that caused crashing

Bug Fix

A couple other minor bug fixes

v0.7.3

2025-10-20

New Feature

Undo/Redo for track construction

New Feature

Pin demand stats to side

New Feature

Keyboard shortcuts for action categories

New Feature

Custom route colors

New Feature

Follow a train as it moves along its route

Improvement

Less bunching on long routes during schedule changes

v0.6.1

2025-10-15

New Feature

Realistic driving times calculated using road layout and dependent on time of day (ex: rush hour traffic is simulated). You can even view the driving/walking paths people use

New Feature

Settings for imperial measurement and 24 hour time

New Feature

Added DC government worker data censored by the census

Bug Fix

Fixed bug causing the game to break with some single tracks

Bug Fix

Fixed error loading save bug

Bug Fix

Fixed bug allowing train cars to be added to route when there aren't enough

v0.5.0

2024-10-12

New Feature

New music

New Feature

Added right click to cancel drawing tracks

New Feature

You can now reset your license to switch between devices

Bug Fix

Fixed bugs with newspaper generation

Bug Fix

Fixed a bug causing time to freeze

Bug Fix

Fixed San Diego