The new expansion, written by Matt Forbeck with cover art by R.B. Silva, adds background on Spider-Man, all his variants, and villains to the game. It allows players to create their own Spider-heroes using new rules. Players can also use this book to create supporting characters, and the expansion even contains rules for symbiotes and clones. This book also features new equipment, adventure hooks, and information about characters Carnage, Madame Web, Spider-Man Noir, and more.
The core rulebook for this game releases on August 2, 2023 (see "'Marvel Multiverse' RPG Release Dates").