Mistborn opens Scadrial to the public on September 9, the second Cosmere RPG setting after Stormlight.

Brotherwise Games put Scadrial on a public digital calendar. Kickstarter backers received Mistborn Campaign Setting digital editions on September 2, 2026. The public digital release follows on September 9, with physical retail hardcovers pointed at November. That week gap is the product. Backers get the early mist. Everyone else gets a Tuesday till date you can actually circle without a crowdfunding login.

This is the second Cosmere RPG campaign setting after Stormlight landed in fall 2025 and, per Brotherwise's Gen Con panel recap, ranked as the number two top-selling RPG in ICv2 reporting for that stretch. Mistborn is not a splash of lore in the back of a Stormlight book. Mistborn is Scadrial as its own hardcover stack: Mistborn Handbook, Mistborn World Guide, and Mistborn Legacy, the campaign-length adventure that spans eras and generations.

I already filed Hope & Fear already sits in the specialty case when this aisle started arguing with itself. The callback still holds.

If you want the earlier shelf note, start with D&D Beyond finally put a species in the monthly drop. I am not restating that whole fight today.

Woman's World's September 4 feature and Brotherwise's own Gen Con writeup agree on the spine of the schedule. Digital to backers September 2. Public digital September 9 via DriveThruRPG and VTT partners including Foundry, Fantasy Grounds, and Demiplane or Roll20 pathways depending on the listing. Physical fulfillment to backers through September and October. Retail hardcovers in November. Dungeon Mister's September 2 post adds Welcome to Scadrial into the digital wave language. The wire can argue about packaging without inventing every page count from a warehouse rumor.

Stormlight opened the Cosmere table. Mistborn is the second world that has to prove the system travels.

Era 1 and Era 2 sharing a handbook is the design dare. Heists, ash, and ballroom knives in one era. Pulp, guns, and secret societies in the other. Foundry's Mistborn Handbook listing frames both eras as first-class: Metalborn paths, mistings, feruchemists, ferrings, twinborn, plus heroic specialties like hazekiller and rebel. One book asking a table to time-travel its tone is either elegant or schizophrenic. Brotherwise is betting elegant. Bets like that are why campaign settings become shelf identities instead of PDF souvenirs.

Mistborn Legacy is the story product inside the setting product. Dan Wells, on the Gen Con panel per Brotherwise, talked about legacies as special roles that give each party member unique character moments and connections across the two eras. Brandon Sanderson's involvement is not a license sticker in the marketing. Dragonsteel collaboration language keeps showing up because continuity is part of the sell. Continuity is also how you keep Cosmere fans from treating the RPG as fanfic with nicer dice.

I already watched Oathgates and Stormlight victory conditions eat the TTRPG conversation on this desk. Mistborn has to arrive as a peer, not a DLC planet. Peer status is why the Handbook is framed as containing what you need to build characters in the Mistborn campaign setting, with World Guide and Legacy as the deepeners. Peers get their own Tuesday. DLC planets get a patch note.

Digital-first public access matters for actual play culture. September 9 means Discord tables can start before the hardcovers bruise a tote bag. VTTs are not a compromise for Cosmere fans who already live in remote games. VTTs are the native habitat. Native habitats deserve day-one PDFs that are not hostage to a freight container in a port you cannot name.

September 9 is the public mist. November is just the hardcover weather.

There is a cynical read where Mistborn is obligatory because the Kickstarter promised Wave 2 and anniversaries photograph well. Mistborn turns twenty in the Brotherwise talking points. Anniversaries are calendars. Calendars are real. Obligation can still ship a great book. The test is whether Allomancy feels like a skill system instead of a keyword sticker. Plot die complications and opportunities, talent trees without multiclass guilt, skill-based magic: those are the published Plotweaver family claims around Cosmere RPG. Claims become grades at tables, not in unboxing videos.

What I refuse to invent: a leaked adventure spoiler, a claim that every metal is perfectly balanced on day one, a fake street price for every SKU, a story that Sanderson wrote every encounter personally. Public materials credit imagination shared with Dan Wells on Legacy. Shared imagination is enough. Shared imagination is how you avoid a cult of personality turning into an uneditable scripture.

Retail November will decide whether bookstores treat Cosmere RPG like a real frontlist fantasy-adjacent object or like a hobby niche that belongs only next to dice trays. Stormlight's ICv2 heat helps. Heat is not a forever passport. Mistborn has to convert readers who loved Vin and Wax into people willing to roll a plot die when a coinshot plan goes sideways in front of their friends.

For GMs, the World Guide is the quiet hero. Settings die when the only playable city is the novel's capital. Guides that open cultures, nations, and friction points are how second campaigns happen. Second campaigns are how RPGs survive after the Kickstarter high fades. Highs fade. Tuesday PDFs are how you start the work anyway.

PHD Games distributor copy floating ahead of retail lists the Mistborn Handbook around a $59.99 hardcover MSRP class with a November 4, 2026 target in at least one trade listing, and frames Legacy as a 265-page campaign climbing from low levels across eras. Trade listings are not sacred tablets. They are useful weather reports. Weather reports tell shops when to clear a shelf. Clearing a shelf is how Tuesday PDFs become November objects people can gift.

So here is the TTRPG filing. Mistborn Campaign Setting hits public digital on September 9, 2026 after a September 2 backer drop, with retail hardcovers aimed at November. Handbook, World Guide, and Legacy are the core trio. Scadrial is the second Cosmere setting after Stormlight. Era 1 and Era 2 share the toys. Play in the mist before the carton arrives if your table is ready. Wait for November if you need the object on a shelf to believe it is real. Both postures are honest.

I will be watching whether shops put the November hardcovers next to the novels or next to D&D. Placement is ideology. Ideology decides who browses into a one-shot. One-shots decide whether Metallic Arts become a local dialect. Local dialects are the dream. Everything else is stretch goal archaeology.

If you skipped the Kickstarter, September 9 is your apology window. Apology windows are rare in crowdfunding culture. Take it. Download the Handbook. Build a crew that would survive a ballroom and a street fight. Leave the lore arguments about which era is superior for after someone actually burns steel at the table.

Brotherwise also used the Gen Con stage to remind everyone the Cosmere game line is wider than the RPG: deckbuilding expansions, strategy Kickstarters, miniatures add-ons. Wider lines can dilute focus. They can also fund the RPG's ambition. Ambition is why Mistborn Legacy exists as a campaign-length bridge across generations instead of a short starter bruise. Ambition still has to fit in a session calendar. Session calendars are the final boss of every hardcover promise.

Sunday's job is smaller. Mark September 9. Tell your group whether you are a PDF table or a hardcover table. Stop waiting for a perfect metal chart essay before you roll. The mist is arriving on a weekday like a normal product. Normal products are how sprawling universes become games you can actually finish.

Scadrial deserves that normalcy. Ashfall romance and gunpowder detective stories deserve rules that respect both tempos. If the Handbook pulls that off, Cosmere RPG stops being the Stormlight game with guest worlds and becomes a platform. Platforms are how you earn a third setting without looking greedy. Greedy is a Kickstarter mood. Platforms are a decade mood. September 9 is the first public chapter of the decade mood for Mistborn.

Bring snacks. Assign someone to track metalburn durations without turning the night into accounting class. Accounting class is how magic systems die in practice. Practice is the only review that matters once the PDF lands. I want practice more than I want another unboxing of gilded edges. Gilded edges can wait until November. The mist does not have to.

And if your Stormlight campaign is mid-arc, you do not owe Mistborn an immediate pivot. You owe yourself an honest read of whether your table wants ash and coins after radiant oaths. Different spices. Same Cosmere kitchen. Kitchens that can cook two menus without confusing the tickets are how Brotherwise earns the next decade. September 9 is when the second menu becomes public property instead of a backer privilege. Circle Tuesday. Open the PDF. Roll something metallic before the arguments start.