Apple TV has closed a deal for the rights to Brandon Sanderson’s Cosmere books, according to The Hollywood Reporter. The first adaptations being considered are the Mistborn series for film and The Stormlight Archive for TV.
According to that report, Sanderson will “write, produce and consult; and will have approvals” over the adaptations. A recent example of where this lack of control can cause tension is with George R.R. Martin and the House of the Dragon showrunner. Martin said in a recent interview with THR that he “would give notes, and nothing would happen.”
Brandon Sanderson himself has a massive audience, with over 50 million books sold since he first started writing. The Cosmere series makes up a large chunk of his published works, with 24 books attached to the shared universe. There are a total of seven books across different eras for Mistborn, and five total in The Stormlight Archive series.
According to THR, The Stormlight Archive already has a production company attached to the adaptation: Blue Marble. The media company is run by Theresa Kang, who has also produced the popular Apple TV series book-to-screen adaptation Pachinko.
What Is The Cosmere?
For those not already intimately familiar with The Cosmere, Brandon Sanderson has a brief explainer you can check out on his website. To quickly summarize, The Cosmere is the galaxy in which a large portion of his stories take place. The books that fit into this shared universe often take place on different worlds with completey different societies. The Mistborn series, for example, takes place on a world called Scadriel while the Stormlight Archive series takes place on Roshar.
Sanderson’s Cosmere universe is known for having a wide variety of entry points that audiences can jump right into. So even though Mistborn and The Stormlight Archive take place in the same universe, they remain separate from each other with independent plot lines. Some characters do appear across multiple stories, but generally you can read them independently without missing any key details.
Although The Cosmere has never been adapted for the screen, it has seen various tabletop adaptations over the last few years. Just last year The Cosmere TTRPG was released with adventures pulled directly from The Stormlight Archive. Prior to that, Brandon Sanderson collaborated on a Mistborn board game that saw some success. Sanderson is still expanding his sprawling fantasy universe as of 2026 with plans for Mistborn Era 3 and additional Elantris novels.
After the Apple TV news broke, Sanderson himself took to the Cosmere subreddit to add a comment of his own. He said that in May he flew to Hollywood to start looking for a new partner on the Cosmere, something he had done before but not since 2016.
“This time, I got to meet the real decision makers,” he explained. “Not just producers or low level executives. And this led to some really tough choices. I got the red carpet treatment, and liked everyone I met.
“The decision to pick Apple was due to two factors. First, the level of approvals and control. Apple wants to be a true partner with me, and they feel like they really get what I want to do. Second, their track record. Apple does fewer things, but with higher quality, than some other studios. I find virtually every thing of theirs I watch is excellent and creator driven.”
Sanderson said he will write the Mistborn screenplay himself over the next five months “as my full time work.” The goal is for a theatrical Mistborn, then a Stormlight show after. “Focus on doing it carefully and right,” he added.
“I promise not to get too distracted to do books. However, if I want this done right, I need to give some real attention and heart to it now.”
Sanderson will be hoping The Cosmere adaptations fare better than Amazon’s The Wheel of Time Prime Video series, which was canceled after three seasons. Last year Sanderson, who finished author Robert Jordan’s The Wheel of Time saga, had some choice words for the people making the decisions on the TV show.
Jacob Kienlen is a Senior Audience Development Strategist and Writer for IGN. Born and raised in Portland, Oregon, he has considered the Northwest his home for his entire life. With a bachelor’s degree in communication and over 8 years of professional writing experience, his expertise is spread across a variety of different pop culture topics — from TV series to indie games and books.
