Killer Instinct has fully embraced cross-play, and it looks like that will extend to Steam as well.
Killer Instinct already offers cross-play between Xbox One and Windows 10, and now it looks like that will be extended to Steam as well. The game has yet to arrive on Valve's storefront, but a Killer Instinct community manager, Rukari "rukizzel" Austin, has now confirmed in a forum post (via PCGamer) that it will indeed support cross-play with its other releases when it launches on Steam "in the coming weeks."
The announcement comes alongside the latest content update for Killer Instinct, which packs a new settings option to enable cross-play. Says Austin:
Tucked away in this CU is a switch that will enable certain feature you've all been clamoring for, and that feature is indeed cross-play!
Yes, this is your confirmation that Killer Instinct players on Xbox One or Windows 10 will be able to play cross-network with players on Steam, as well, and we're super excited to be able to bring that feature to you when KI launches on Steam in the coming weeks.
The option is in testing, so Austin warns that it may occasionally be turned off and missing as the team works on things in the background. This won't impact your ability to play Killer Instinct either in-network or between Xbox One and Windows 10 players.
There's still no word on when, exactly, Killer Instinct will make its debut on Steam. That said, Austin's choice of words indicates it may not be too far off, so we should hear much more soon.