i'm sure this is an issue that's only happening because this game is still new enough that it's just not integrated with STEAM.
The link above does work and brings you to the STEAM page for the game. For those who enjoy STEAM through the browser. Those of us who prefer to use the client for STEAM can't find the game, it's not even listed to show up in specific search for the name of the game. Just curious that the web browser version displays the game's listing, but the client does not.
i look forward to some fun 2D shooting and some good story to follow.