The base Train Simulator game is available separately from the Steam online store and is required to use this add-on DLC (Downloadable Content)
We are developing our next RhB content that will include the ABe 8/12 Allegra - due for release in Q3 2017. Further details will be made available here as the project approaches completion.
We are always interested and grateful for your own ideas for content development. And although we obviously can't create everything, your suggestions have a real impact on the types of content we will focus on in the future. Use our Contact page to send us your ideas.