Kingdom Come: Deliverance's reception shocked developer Warhorse Games when it was funded after only 36 hours on Kickstarter. The realistic medieval RPG was originally announced for next-gen consoles and PCs, but Warhorse wasn't entirely sure how feasible it would be based on publishing requirements for the PS3 and Xbox 360. After extensive discussion with both Sony and Microsoft, Kingdom Come: Deliverance is officially coming to Playstation 4 and Xbox One.
In order to publish a game on the PS3 or Xbox 360, a developer would have to have an official publisher. Warhorse doesn't have a publisher, so they weren't too sure what they could deliver on. Not wanting to let their fans down, the developer turned to Sony and Microsoft for help. While the Xbox 360 and PS3 may be out of scope, the console makers are "very eager" to help independent developers this generation. As a result, Kingdom Come: Deliverance was approved for release on both the Xbox One and PlayStation 4.
Beta access is currently only confirmed for PC, Mac, and Linux, though Kickstarter backers will be able to choose any platform for their digital copy when the game releases. PS4 and Xbox One versions are currently only confirmed for digital release, but Warhorse is exploring options for retail publishing. Kingdom Come: Deliverance has a current estimated release window of December 2015.