The KeyForge Master Rulebook (MRB) is the comprehensive rules of play for the game of KeyForge. It is the game’s most authoritative source and contains a detailed glossary, official errata, frequently asked questions, and a timing chart. It is primarily a reference document to help players find answers to specific questions. We update this rulebook periodically as new card sets are released and as new questions arise about how to resolve various card interactions that occur during games.

Note: if you’re new to KeyForge, the best ways to learn how to play the game are to read Learn to Play KeyForge and to watch our video tutorial.

This update includes:

New Glossary Entries

New glossary entry update for Power Bonus Icon

Updated Glossary Entries

Discarding Cards, For Each, and Ready Cards

New FAQ Entries

New FAQ Entries for Endless Hordes, Exterminate Exterminate, and The Chosen One

New Errata

An Errata for Entropic Swirl

Entropic Swirl launched back in KeyForge: Age of Ascension and has been reprinted many times since. Since we’ve gone through and clarified some of the timing windows in play, we felt the ability for Entropic Swirl needed some clarifications to match it. So we’ve done just that. The card still functions the same as before.

To see the updated Master Rulebook, visit the link below. We will continue to watch events, listen to the feedback of event staff, and monitor the community as we evaluate possible future changes.