A platform by platform breakdown of where Killer Queen Black is available on, and where it may be released in the future.

Nintendo Switch

Killer Queen Black has two releases on Nintedo Switch, digital and physical.

Digital

Killer Queen Black is available on the Nintendo eShop for $19.99 USD at the time of this writing.

Buy Killer Queen Black on the Nintendo eShop

Physical

You can buy the physical release of Killer Queen Black from various video game retailers, Amazon has it listed for $29.99 USD.

The physical version of the game comes with exclusive Killer Queen Black joycon controller skins.

Steam (PC, Mac)

Killer Queen Black is available on Steam for $19.99 USD at the time of this writing.

(Buy Killer Queen Black on Steam)[https://store.steampowered.com/app/663670/Killer_Queen_Black/]

Discord (PC, Mac)

Killer Queen Black is available on the Discord Store for $19.99 USD at the time of this writing.

Buy Killer Queen Black on Discord

The game was also briefly available via the now defunct Discord Nitro subscription service, however this method of access is no longer available.

Xbox One

An exact release date has not been committed to, but it has been strongly implied that Killer Queen Black will come to Xbox One in 2020 Q1.

Additionally, Killer Queen Black will be part of the Xbox Game Pass when it is released for that platform.

Playstation 4

There are plans to bring Killer Queen Black to PS4! No release date details have been outlined at this time.

Release Differences Between Platforms

There are no real differences between the different release platforms, it's down to personal preference. source @Adam Liquid Bit#4392 on Discord

Minor difference(s) are: - Only Nintendo Switch release allows local offline 8-player multiplayer [needs confirmation]