But we’re not making a new edition. We will make limited changes to the way the game plays mechanically—and none of those changes affect the way NPCs, creatures, or items like cyphers or artifacts work. We also won’t be making changes to the setting. So, if you already play Numenera, your bestiaries, adventures, card decks, character portfolios, and books like Into the Night, Technology Compendium, and Jade Colossus will not be affected by these changes. We will not issue any “second editions” of the existing supporting titles—and if you choose not to get Numenera Discovery, future Numenera supplements will work fine with your existing Numenera corebook. Your ongoing campaign will flow smoothly through the change in corebooks. You will even be able to mix existing characters with those from Numenera Discovery into your game. In fact, the game can be played with both the existing corebook and Numenera Discovery in use at the same game table!
(One small exception: Numenera Character Options and Numenera Character Options 2 will remain compatible, but will become substantially less relevant following the improvements to characters in Numenera Discovery. We will retire those titles.)