Changelog
View the latest updates and changes to Subway Builder
2026-02-06
Subway Builder is out of beta! Modding support and tons of quality-of-life improvements.
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).
Timelapse Generator: Watch your network grow and export as GIF. Access from Escape Menu → Timelapse, or right-click any save file.
Play time counter to track how long you've spent building your transit network.
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.
Better UI/UX sounds. Adjust or mute in Settings.
High performance GPU settings to use more GPU resources for smoother rendering.
Save overwrite confirmation: You'll now be asked before replacing an existing save.
Smoother page transitions and faster loading screens.
56 new newspaper articles with authentic local paper voices for each city.
Light metro now runs at 100 km/h to match real REM specifications.
Hover over tracks when the track speed layer is enabled to see their elevation and speed limits.
Slightly increased light metro track costs to balance gameplay and align with realistic costs.
Placing blueprint tracks on very large maps is now faster.
Route stations list now shows transfers to routes in the same station group.
~10% decrease in simulation lag for very large maps.
Some public transport related buildings have been removed from the map so you don't need to pay to demolish them.
Construction settings persist after closing a map.
Fixed a bug that broke the ability to switch save files without restarting the app.
Fixed saves getting stuck when loading a save with no routes.
Fixed window close button (X) not prompting to save on macOS.
Fixed building layer overlap rendering issues.
Fixed imperial units not displaying correctly in build mode.
Fixed building foundation key not updating on zoom.
Fixed drag and drop for route groups not working with custom route group colors.
Fixed discrepancy in the list of hours by demand level used for train scheduling.
Fixed Windows not rendering country flags on home page.
Fixed "coordinates must contain numbers" bug when building some blueprints.
Stopped a bug sometimes causing undelete-able tracks to be created.
Fixed transfers being counted twice when viewing number of riders by station in a route.
Fixed route colors breaking when cancelling in-progress edits of route changes.
Fixed bug that broke some track deletion with an error message like "Can't delete tracks. End station not found for stNodeId"
Fixed bug breaking construction when trying to build very large blueprint tracks.
Several other stability and performance improvements.
2026-01-16
Added note on "nearby stations" to show if the distance between stations is short enough that pops will consider transferring
Slightly increased light metro track costs to balance gameplay and line up with realistic costs
Minor UI change to bottom bar
Terms of service/privacy policy update
Fixed building foundation key not updating on zoom
Fixed drag and drop for route groups not working with custom route group colors
Fixed discrepancy in the list of hours by demand level used for train scheduling
Fixed Windows not rendering country flags
Fixed "coordinates must contain numbers" bug when building some blueprints
Stopped a bug sometimes causing undelete-able tracks to be created
Fixed transfers being counted twice when viewing number of riders by station in a route
Fixed route colors breaking when cancelling in-progress edits of route changes
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! 🎄
British cities 🇬🇧! London, Manchester, Liverpool, Birmingham, and Newcastle.
New American cities too: Columbus and Milwaukee.
2025-12-04
Phoenix! Other cities are coming soon. Technical issues with Los Angeles are being worked on.
Station/station group/route ridership by hour charts
Option to see financial stats for last 48 hours
Arrows on tracks indicating direction
Page up/page down shortcut for changing track elevation in build mode
Buy more train cars faster by holding shift and pressing the +/- buttons in the buy trains panel
Manual route ordering so you can do stuff like creating Chicago loop-style routes (experimental)
Ability to change text color for route bullets
Another preset custom map color theme
Q and E keys can be used to rotate the map
Lower bond interest rates for easier early/mid-game play-throughs
Removed bonds from operational financial numbers
Include bonds in bank balance
Unbundled city data from the application bundle so it's downloaded separately
Smoother map movements with WASD keys
Made map layers panel scrollable
Patched bug that broke modded cities in the Southern Hemisphere
Fixed the "export game" button on the main save menu
Fixed pinned demand stats view getting stuck
Fixed glitch where station labels would move to weird places right after editing
Fixed station group stats not adding up sometimes
Fixed new games not working after running another game in the same session
2025-11-21
Autosave feature with various other improvements to the save system
Game save route map thumbnails
Experimental setting to show interlined routes on the map side-by-side
More keyboard shortcuts that can be customized
Ability to view a pop's mode choice breakdown by income level
Hold shift and drag over the demand stats view to see the origins/destinations of multiple selected points
Airport taxiways/runways
Tracking time spent in-game so you can see how addicted you are
Much smarter pathfinding. No more backtracking or not detecting transfers.
Fewer lag spikes while simulating large maps
Better color picker styling
Made bonds unlock with higher revenue instead of profit
Less laggy station/route ridership panels
Stopped flash banging dark mode users on app start
More and better newspaper articles
More distinguishable dark mode colors
Roads don't fade away when zoomed out if the construction panel is open
Fixed "Station not found from stNodeId" crash
Fixed stuck pops bug
Fixed bug that would sometimes cause new tracks to not bend at an angle to match the tracks they’re connected to
Fixed saves not storing the number of owned train cars
Fixed train capacity warnings being duplicated
2025-11-04
Ocean/river floor elevations for additional real-world costs and constraints to construction (East Coast only for now)
Bonds/loans to help early-game
Road labels
Custom map colors
Editing routes is much faster now
Station names are automatically chosen based on cross streets instead of the closest streets
20% faster pop pathfinding calculations
Better input form for custom route colors (no more manually inputting hex codes)
Fixed stuck pops bug
Fixed bug causing cursor movement-induced lag
Fixed saves not storing the number of owned vehicles
Fixed train capacity warnings being duplicated
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.
Spanish & French language support
Full screen support on Windows
Pinned demand bubbles are now transparent
Patched bug causing a white line to infinity to appear when drawing tracks
Disabled mouse forward/backwards buttons that caused crashing
A couple other minor bug fixes
2025-10-20
Undo/Redo for track construction
Pin demand stats to side
Keyboard shortcuts for action categories
Custom route colors
Follow a train as it moves along its route
Less bunching on long routes during schedule changes
2025-10-15
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
Settings for imperial measurement and 24 hour time
Added DC government worker data censored by the census
Fixed bug causing the game to break with some single tracks
Fixed error loading save bug
Fixed bug allowing train cars to be added to route when there aren't enough
2024-10-12
New music
Added right click to cancel drawing tracks
You can now reset your license to switch between devices
Fixed bugs with newspaper generation
Fixed a bug causing time to freeze
Fixed San Diego