Radiant Optimizer Games
About OpenTTD
OpenTTD is a free, open-source game based on Transport Tycoon Deluxe, the 1994 classic by Chris Sawyer. You run a transport company and connect towns and industries with trains, buses, trucks, ships and planes, growing your network across a century of game time. Since its first release in 2004 it has gained new features, bigger maps and online play.
OpenTTD in the browser
dos.zone runs OpenTTD 14 in the browser with open music and sound sets. It also hosts three 24/7 multiplayer servers (temperate, arctic and desert) where up to 30 players can build together. Free and ad-free.
How to play OpenTTD online
- Use a desktop browser (Chrome or Edge works best).
- Click “Play now”. The game opens in a new tab on the original project's site.
- Wait for the first load; big games can download hundreds of MB.
- Click inside the game to capture the mouse. Press Esc to release it.
⚠ Never download a launcher or .exe from a browser game page.
Tips for OpenTTD
- Start with a short coal or passenger line between two nearby towns or industries.
- Use signals on double track so trains can pass each other without crashing.
- A loan helps early on, but pay it back once your routes start making a profit.
OpenTTD: questions and answers
Can I play OpenTTD online for free?
Yes. OpenTTD opens in a browser tab on the project's own site, with no download and no sign-up.
Do I need to install OpenTTD?
No. Everything runs inside the browser tab. Close the tab and nothing stays on your computer apart from the browser cache.
Does OpenTTD work on a phone or Chromebook?
It is built for desktop browsers. Chromebooks with an up-to-date Chrome usually work if they have enough memory; phones are not officially supported.
Why is OpenTTD not loading?
Fan-made browser ports often run on small servers. Wait a minute and refresh, use Chrome or Edge on a desktop, close other heavy tabs, and make sure no extension is blocking the page.
Is this the official OpenTTD?
No. This page links to an independent web project. Neither Radiant Optimizer Games nor the project is affiliated with OpenTTD team (open source).
