Simutrans is an open-source transport simulator. Establish a successful company transporting passengers, mail and goods by land, air and water.
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Haiku
- Steam
- Flathub


The best free alternative to OpenTTD is Simutrans, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to OpenTTD and six of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to OpenTTD are OpenRCT2, Citybound, Micropolis and TransLines.
Simutrans is an open-source transport simulator. Establish a successful company transporting passengers, mail and goods by land, air and water.


OpenRCT2 is an open-source game engine recreation of the simulation game RollerCoaster Tycoon created by Chris Sawyer in 2002. OpenRCT2 uses a similar development process to .

Citybound is a city building game with a focus on realism, collaborative planning and simulation of microscopic details.



Micropolis is a open city-building simulator game and is based on the original source code of SimCity , which was donated to the One Laptop per Child (OLPC) project by Electronic Arts as free and open source software under the terms of the...

TransLines (Transit Lines) is a real-time public transport building game. It uses visual style similar to public transport maps of big cities. Become a manager of your own metro and try to build a biggest yet the most efficient metro system to transport huge number of passengers.




Build a thriving underwater city, reveal the truth and save the planet in amazing free to play game!.



OpenTTD is more focused on transport and Citybound more general but I still get similar feelings when playing transport simulators and city building simulators. I'm sure that's not the case for everyone, but for me at least, these subgenres they are close enough to be alternatives to each other.