Well, for me it is really just the question if i can have a built of my game both for Steam and UWP without having any big overhead in preparing special builds. If i would release my game on the Windows Store truely depends on the amount of overhead i’ll be getting. For now at least it doesn’t matter if there is a Windows Store or not - they simply do not have the audience, 99% of PC Gamers are using Steam so that’s where you need to sell your game - as simple as that. I don’t see how UWP will generate growth if they limit your game by being exclusively sold on the Windows Store. My biggest issue with MS is their overhead on legal paperwork, getting your game onto XBOX1 is quite a process.