Simple Computer Aided Railway Modeller


SCARM means Simple Computer Aided Railway Modeller – a software for fast and easy design of model train track plans and scaled railroad layouts.

With SCARM you can easily create the layout of your dreams – just download the setup package, install it and start editing your first track plan.

In SCARM you can use unlimited number* of tracks and objects from more than 180 libraries and instantly see your design in 3D preview with a single click.

And don't forget – the most important is to have fun with the model trains

Follow SCARM on Twitter   
* Only in the licensed version


I enjoy using SCARM very much. Last year as you moved to your current licensing model I purchased a license. I love the program and appreciate all the work you have put into it. Well worth purchase.

Jeffrey Binkley

I just bought a SCARM license and the Train simulator PE license. Very impressive! I have designed several layouts and yesterday created my first complex building. I am very impressed with the software. Job well done!

David Muxo


SCARM 1.2.0 Multilingual  3.4 MB from 28 Jan 2018

System requirements:   Windows XP/Vista/7/8/10
OpenGL compatible graphics
Installation type:   Standalone installer
License:   Freeware (limited)

After installing, start the program and select your preferred language from "View" > "Language" menu.

If you are upgrading from a previous beta version, please, read the article Everything About The Transition to SCARM 1.0.0.


What you can do with SCARM?

  • You can create complex railroad layouts with many train stations on virtually unlimited area
  • You can shape flex-tracks easily, intuitive and most important – in very realistic way
  • You can deploy your layout on more than one level, with different heights and slopes of choosen sections from the track route
  • You can place tunnels and bridges on the track plan
  • You can draw figures in order to create buildings of train stations, houses, industries, etc. together with all needed roads and infrastructure
  • You can use semaphores and color light signals to create the signalling in the layout track route
  • You can see a 3D view of your layout - just select "3D" button from the toolbar
  • You can measure distances and check track sections length, using the functions in "Tools" menu
  • You can export and/or print your layout and show it to the other model trains fans and enthusiasts
  • You can view and print a list with the track pieces needed and even use it as a shopping list
  • You can extend the functionality of the main program with various extensions, like the Model Trains Simulator
  • You can share your ideas with the author, request new features and report bugs and errors, if you find some

Included Track Libraries

Current version of SCARM supports more than 180 track and object libraries.*

* Some of the libraries are not fully completed. Data accuracy is not guaranteed. More libraries will come soon.

Information, Tutorials & Resources

The SCARM Blog is your ultimate source for updated information about the program. It contains many useful articles and resources about SCARM.

The blog contains the following categories:

Do not miss the video tutorials about SCARM created by Ruud Boer and J. B. aka Gilshrat.

If you look for examples and projects designed in SCARM, go to Layouts and Track Plans online database and search by scale, size, tracks and more.

Join us in the social sites, share your comments and stay up-to-date with all SCARM news and events.




FB Forum

Useful Links

Check these links to other model train related sites and resources.

  • ANKA - Hearing aids, blood glucose & lactate meters, speech devices & cannulas, service and consumables
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