system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: The aspects of Windows 8 are causing prominent game devs to balk.

I've seen Notch and Gabe N. offer public sentiments that they have no desire to use Windows 8 at all for gaming, but their rationale is kind of vacant. Is it a design issue, a certification issue, or both?
gpt
It basically comes down to not liking the direction MS is going. For Gabe (and steam) in particular, they have the big problem that windows is moving towards being heavily locked down with programs much more limited in what they can do and how they can be installed. Microsoft would like to put their app store in direct competition with steam, but with them able to use their ownership of the operating system to lock steam out.

To be clear, that isn't something that windows 8 actually does on the desktop yet, but it's the direction that's the problem. On the tablet, for instance (which is ultimately the same interface, the one that windows really wants everyone to use), it's already massively locked down like an apple device.

I don't know if Notch has some particular problem with it, but he's presumably motivated by a general dislike of these same changes. The windows PC is popular and great for gaming because its an open platform in the necessary ways for lots of games to get made relatively easily. The less true this is, the more worrying for the game industries.