Scadrial is open on the public PDF. The second Cosmere RPG setting stamp is today.

Today is the public mist. Brotherwise Games opens the Mistborn Campaign Setting for the Cosmere Roleplaying Game to general digital buyers on September 9, 2026, after Kickstarter backers received their files on September 2. That is the second Cosmere RPG setting stamp after Stormlight. I am filing it as a Tuesday promise that became a Wednesday login, not as a novel recap you already read under a bus shelter light.

The carton, digitally speaking, is a stack. Mistborn Handbook for character options across both eras. Mistborn World Guide for Scadrial lore, geography, adversaries, and the Metallic Arts framed for the table. Mistborn Legacy as the campaign length adventure that stretches across eras and generations. Welcome to Scadrial as the shorter spoiler light intro booklet for players who need context without a wiki spiral. Public paths named across coverage include DriveThruRPG PDFs plus VTT and digital partners such as Demiplane, Foundry, Fantasy Grounds, and Roll20 depending on the listing. Physical retail hardcovers still point at November 2026, with Kickstarter physical fulfillment language starting in September for backers.

Monday's desk already dated the public open. Today's desk is the open itself. Open means you can buy without a backer number. Open means a second Cosmere planet stops being a Kickstarter private club and starts being a shelf a FLGS can point at when someone says they love Sanderson but fear learning a new system alone.

Scadrial is open on the public PDF. The second Cosmere setting stamp is today.

Era math is the real product. Era One is ash, balls, heists, rebellion, and horror under the Final Empire. Era Two is railways, automobiles, detectives, secret societies, and gunslinger pulp on a changed Scadrial. One setting release covering both eras is ambitious in a way Stormlight did not have to be on day one. Ambition is why this filing matters more than a generic PDF drop post.

Brotherwise and Dragonsteel have been loud that the Cosmere RPG is a d20 based original system with talent trees, skill based magic, and the plot die, not a reskin apology. Loud is fine when the shop pages match. Mistborn Handbook materials talk eight new heroic specialties including hazekiller and rebel, plus paths for Mistborn, Mistings, Feruchemists, Ferrings, and Twinborn. That sentence is a character creation weekend wearing a metal vial.

I will not invent session zero quotes or review scores. I will say the digital first week is how modern TTRPGs prove retention before cardboard arrives. Retention looks like a crew building a Coinshot on Foundry on a Wednesday night because the PDF unlocked this morning. Cardboard in November is how the same crew recruits the friend who only believes books when they thump.

I already mapped the backer to public gap in Mistborn opens Scadrial digitally.

Stormlight was the first Cosmere RPG setting stamp. Mistborn is the second. Second stamps are how a line stops being a one world cosplay and starts being a universe you can tour with the same rules spine. Touring matters for players who want Allomancy without abandoning a group that already learned the plot die on Roshar. Shared spine, new metal. That is the sales pitch wearing a calendar.

Second setting stamps are how a universe becomes a shelf instead of a single hardcover stunt.

Practical buyer note. If you backed the Kickstarter, you already have the mist. If you did not, today is the digital till date. If you only buy physical, November is still the hardcover aisle. Do not let a PDF week guilt you into skipping the book you actually want to annotate with sticky tabs. Sticky tabs are a love language. Love languages are allowed to wait for print.

Shop pages and partner listings will shuffle all day. Shuffle is normal on a public open. Trust the Brotherwise and Cosmere RPG store maps over a random screenshot of a grayed out cart. Grayed out carts are weather. Weather is not a grade.

What I want from week one is boring and correct. I want new crews to build Twinborn concepts without needing a Discord archaeologist. I want GMs to open Mistborn Legacy and feel a campaign spine instead of a pamphlet. I want Era Two tables to exist beside Era One tables without one crowd calling the other fake fans. Fake fan discourse is how hobbies rot. Rot is optional.

Different system, same September expansion pressure: Daggerheart's Hope and Fear is still marching toward a September 22 national stamp with its own class claim. Different IP. Different metal. Same month proving that TTRPG shelves are not a single franchise hostage situation.

That parallel class claim still sits in Hope and Fear is the class claim.

Wednesday wire. September 9, 2026, public digital open for the Mistborn Campaign Setting in the Cosmere RPG via Brotherwise. Handbook, World Guide, Legacy, and the Welcome to Scadrial intro in the published stack. Second setting after Stormlight. Physical retail still aimed at November. Buy the PDF if your table wants Allomancy tonight. Wait for hardcover if your hands need paper. Either way, Scadrial is no longer a backer only mist. The second Cosmere stamp is live.

I keep a soft spot for digital opens that respect the FLGS timeline instead of pretending PDF killed the store. PDF is the rehearsal. The store is the concert when November boxes land. Rehearsals still matter. Rehearsals are how you find out your crew hates heist pacing before you buy five hardcovers and a map pack.

One Miles selfish want. I want Era Two to feel playable out of the Handbook without a lore exam. Gunsmoke Scadrial deserves tables that start mid chase, not mid dissertation. Dissertation energy is for the World Guide on a Sunday. Chase energy is for tonight. Tonight is why public opens exist.

If you are brand new to Cosmere RPG, start with the spoiler light booklet and the Handbook specialties before you drown in World Guide secrets. Secrets are delicious. Secrets are also how session zero becomes session never. Never is the enemy. Play is the product. The product unlocked this morning for anyone with a card and a login.

Close the tab on rumor calendars. The till date was September 9. The till date is now. Scadrial is open. Go build something metallic before the Discord invents a fake errata. Fake errata is a competitive hobby. Competitive hobbies can wait until after you roll your first plot die in the mist.

Allomancy at the table is a tempo conversation. Coinshots want vertical space and metal. Mistings want identity. Twinborn want greed with a rules lawyer nearby. Nearby is healthy. The Handbook's job is to make that greed legible before the World Guide tempts everyone into a lore seminar. Legible greed is how crews form. Lore seminars are how crews cancel.

I also want to nod at the Foundry module reality without turning this into a VTT review. Partner pages listing Mistborn Handbook support are part of why a Wednesday digital open matters in 2026. Remote tables are not a pandemic footnote anymore. Remote tables are how Cosmere fans in three time zones share one plot die. Sharing is the product. The PDF is just the key.

Physical November still matters for people who annotate in pen. Pen people are not obsolete. Pen people buy the hardcover aisle that keeps bookstores interested in RPG spines. Interested bookstores are how Sanderson adjacent hobbies leave the Kickstarter silo. Leave the silo. That is the whole second stamp argument wearing a retail calendar.

If your group already runs Stormlight, treat Mistborn as a second planet with shared grammar, not as a demand that everyone abandon Radiants overnight. Overnight conversions are cult behavior. Cult behavior is bad for Tuesday nights. Tuesday nights need consent, snacks, and a clear pitch: heist ash fantasy or gunsmoke pulp. Pick one for arc one. Save the era hop for Legacy when the table earns it.

Wednesday morning energy is simple. The mist is for sale to anyone. The second Cosmere RPG setting stamp is not a rumor. Buy, build, argue about metals, and refuse fake leaks about November print delays until Brotherwise says so. Saying so is their job. Playing is yours.