Free Lives Games' Broforce is not on Xbox One, and today Creative Director Evan Greenwood mentioned in an interview Microsoft's much criticized but not yet fully publicly disclosed "parity clause" (that apparently doesn't allow indie developers to publish on Xbox One after other platforms) as a possible cause.Microsoft's ID@Xbox Director Chris Charla took to NeoGAF to clarify that his team hasn't been contacted by the developer, and the parity clause isn't involved.

Hey, I just wanted to come in here to say that Broforce looks rad, and it's cool they have a good deal with Sony. As far as I can tell from checking this afternoon, they have never contacted ID@Xbox about coming to Xbox, so our policies don't really come into it, not really sure why they brought that up.

We've said before we want to make sure every game that wants to come to Xbox One can do it, and if developers have any questions they should get in touch with us at id@xbox.com. (And yes, I’d love to see Broforce come to Xbox One!)

Charla also mentioned a few titles that were not affected by the parity clause, and explained that at ID@Xbox are considered equal, whether they're big or small.

You forgot Piers Solar, Rogue Legacy, Oddworld, and Thomas Was Alone. : )

Golf Club was a sim ship, though. And Guacamelee was a special edition so that doesn't really count either.

Piers Solar wasn't a "big title form a big developer" either, since the reality is we treat every develop (big and small) exactly the same.

Microsoft Game Studios' Head of Marketing Aaron Greenberg also mentioned on Twitter that he would love to have Broforce on Xbox One, reiterating that the house of Xbox has not been contacted at all.

Possibly this might serve as an alarm bell to Microsoft.

Whether the parity clause is as strict as some allege or not, if its perception prevents developers from contacting Microsoft at all, it might be time to make changes, or at least to be more open on what goes and what doesn't.