Quantum Break coming to PC - But not Steam
Quantum Break will be released on both PC and Xbox One, but if you're a PC player you won't be adding it to your comprehensive Steam library.
Quantum Break will be released on PC on the same day as Xbox One, but you won't be able to get it from Steam.
Microsoft today confirmed that Quantum Break will be a Windows Store exclusive. This isn't an isolated incident either; the upcoming Fable Legends will also be exclusively available from the Windows Store.
If you do pick up Quantum Break on PC, you'll be able to cross-save, so that you can pick up your progress on Xbox One. Achievements will be shared across both platforms, so if you unlock something on Xbox One, you won't need to also unlock it on PC.
Quantum Break will be out on PC and Xbox One on April 5th.