I have just uploaded an Open Rails activity pack for the Starter Route (a free download from traimsimulations.net). There are nine activities, ranging from easy to hard, which together some optional exercises make up a tutorial on shunting. As this is intended for people who are new to Open Rails, no other downloads are required. I am releasing this work without restrictions, and you may do whatever you wish with it. This should provide hours of fun!
open_rails_starter_tutorial_1_0.zip
Regards,
Dan Reid