Purchasing

For a full list of purchasing links by release platform, see the releases page.

Steam
You can gift Killer Queen Black on steam! See this Steam Support Page for more information.

Nintendo Switch
Unfortunately for Nintendo Switch, there does not currently seem to be a way to gift the game.

Purchasing Steam 4-Pack When Already Own Single Copy
If you already own Killer Queen Black on Steam but want to purchase the 4-Pack for friends, you may be prevented by the Steam Store due to already owning one of the copies of included in the 4 Pack.

To get around this purchase the 4 Pack through Humble Bundle, and you will receive 4 individual keys for distribution to your friends, without the Steam Store restriction.

[needs more clarification]

(source @Animosity#6942 on Discord)