Brotherwise releases three Mistborn TTRPG books for Cosmere RPG

Brotherwise Games has published the Mistborn Handbook, the Mistborn World Guide and the Mistborn Legacy campaign books for the Cosmere RPG, according to Polygon. The three releases bring Brandon Sanderson's Mistborn setting to the tabletop line.

The books cover two eras set on the planet Scadrial. Brotherwise describes them as laying groundwork for Sanderson's next Mistborn trilogy, called Era Three, and they add lore on how Autonomy became aware of Scadrial and established a secret organization called the Set.

The Mistborn World Guide also offers a First Look at characters who will appear in Apple TV's upcoming Mistborn adaptation. Meric Moir is co-lead designer of the World Guide, and Johnny O'Neal is Brotherwise's co-owner and creative director.

Mechanically, the Mistborn rules offer 16 different metals for 32 powers, compared with 10 types of surgebinding in the Stormlight TTRPG books. Gold allomancy is represented by two talents, while using Iron to pull metal objects is represented by a Seven-talent tree. Burning Aluminum, seemingly useless on Scadrial, is depicted in the art as negating a surgebinder's powers from Roshar.

In 2025, Brotherwise published a set of three tabletop role-playing game books set in Sanderson's The Stormlight Archive, and followed that project by announcing an expansion to the Cosmere RPG based on Mistborn.