I posted this question on the Steam Discussion Hub but will post here as well.

I plan to purchasing the DLC scenarios in one of the platforms, (even though purchasing digital content for a game I already spent 150€ worth of base game and expansions is unreasonable) but before I would like to know if the Steam version offers Touch Support for touch screens.

Soon you will be able to streams games to your tablet and phone through Steam, this would be the best option for me.

Anyone knows if its currently available or if it will be implemented?

Thanks in advance

I use a windows tablet, so this may not be 100% relevant - but touch support works fine.

Just checked the "Steam Link" app on the Android Store and touch works on that too!