I wouldn't mind trying the game if there was a real link to find it or any clear directions on how to find the real link.
So you clicked the buttin that says "Add To Library" correct? Well, when the button says "Already owned. Go to library" ( Or something akin to it )
Then you move your mouse to your account name. ( This should be at the top of the screen, to the left of "Community" )
Then click the button "My Library".
Click on the "Showcase" button.
Now you basically go through the pages till you find the game you where wanting to download ( Of course, in this case its "Skybride". )
Now its just click on the red button with the Windows Icon on it.
Hope that helped you!