Worldwide sandbox
Start in thousands of cities, use worldwide population data, and build without artificial boundaries.
BUILD ANYWHERE · OPERATE EVERYTHING
Design the network.
Build stations and track on a worldwide map, plan service, move trains, and watch population and finances react to your decisions.
Real operations
Set stopping patterns, headways, operating windows, fares, fleets, and infrastructure types.
Living demand
Passengers respond to jobs, destinations, transfers, waiting, crowding, and price.
INSTALL ON WINDOWS
Getting past the "unknown publisher" warning.
This build isn't code-signed yet, so Windows treats it as coming from an unknown publisher and blocks it by default. That's expected for a private test build — here is exactly how to run it anyway. Expect bugs and save migrations; duplicate important networks before updating.
- Download
Transit.Architect.Setup.0.0.8.exeusing the button above, only from this page. Save it somewhere easy to find, like your Desktop or Downloads folder. - Unblock the file. Right-click the downloaded
.exeand choose Properties. On the General tab, if you see an Unblock checkbox at the bottom, tick it and click OK. (No checkbox means Windows didn't flag it — carry on.) - Run it. Double-click the installer.
- At "Windows protected your PC" (the blue SmartScreen box): click the small More info link, then the Run anyway button that appears underneath.
- At "Do you want to allow this app to make changes to your device?" (User Account Control): click Yes.
- Pick an install folder if asked, finish the installer, then launch Transit Architect from the Start menu or the new Desktop shortcut.
SHA-256
A1066C2E74E333F72D509F6FF4B6DCD924F7961E56A7BF2719EEDE3550A8E79DIF IT STILL WON'T RUN
Your browser or antivirus is holding it.
Some browsers and antivirus tools quarantine an unsigned installer before you get the chance to run it. Confirm you have the right file with the checksum above, then clear whichever block you hit.
- The browser blocked the download ("isn't commonly downloaded" or "couldn't be downloaded securely"): open the browser's Downloads list, hover the file, click the ⋯ (or the caret), and choose Keep → Keep anyway. In some Chrome/Edge versions it's Show more → Keep.
- Windows Defender removed it: open Windows Security → Virus & threat protection → Protection history, open the blocked item, set Actions to Allow (or Restore), then download and run again.
- Another antivirus removed it: open that program's Quarantine or Protection history, restore the file, add an exclusion for the folder you saved it in, then re-run.
- Verify the file first — in PowerShell:
Get-FileHash -Algorithm SHA256 "$HOME\Downloads\Transit.Architect.Setup.0.0.8.exe"
The Hash it prints must match the SHA-256 above. If it doesn't, delete the file and download it again from this page only.
Privacy and network use
City search runs locally and does not transmit your search text. The game contacts OpenFreeMap to load map tiles. Diagnostic reports are exported only when you explicitly request one and are not uploaded automatically.