The Steam Trading Cards for The Axis Unseen are now live! These will drop as you play the game and you can use them to craft badges to put on your Steam profile.
These can also be sold on the marketplace if you don't want them yourself and other people can then collect more of them to craft higher level badges.
There are also items on the Steam Point Shop now, such as The Axis Unseen themed Steam profile backgrounds and Emoticons for chat. You can check those out [url=https://store.steampowered.com/points/shop/app/1807810]here[/url].