UWPHook

UWPHook: A very handy application that will help unify your game libraries by adding any game from Windows Store, to Steam.

UWPHook is a very handy application for all the users out there that like to keep all their games in one place, in order to take advantage of Steam's social features, and it's great for Windows Store games and apps.

Since Steam is the most preferred method of buying and launching games by pretty much everyone, it's no a surprise that gamers will want to add all their outside titles to Steam, since using other clients for different games can be really annoying.

The only downside is that you will not be able to use the overlay when launching any UWP app from steam.

All in all, UWPHook is a great application that will help unify your game libraries by adding any game or app that you've purchased from Windows Store to steam, in order to launch them from there.