We have seen many people asking for a demo of Shattered Horizon. We have been working with Steam this week to organise the next best thing - Steam Guest Passes.
Later today all players will be given three Shattered Horizon guest passes to share with their friends. Each pass will allow a friend to play Shattered Horizon for three days. The time begins when your friend starts downloading the game.
You can find out more about Steam Guest Passes here:
https://support.steampowered.com/kb_article.php?ref=8112-DFJL-4653
The passes will expire after 30 days so don't wait too long to give them out.