On October 30, Mega Crit announced that Slay the Spire 2 will receive a major update on November 13, 2026. This update will introduce a new mode that supports both single-player and multiplayer gameplay.
This news was revealed in Mega Crit's October 2026 newsletter. The newsletter also covered topics such as WePlay 2026 information, a large Q&A session, new creature showcases, merchandise, and community highlights, but it is currently unconfirmed whether all these content items are part of the November 13 game patch.
Mega Crit has not yet revealed the official name, gameplay objectives, player count, or unlock conditions for the new mode, nor has it specified whether the multiplayer component will be cooperative or competitive. The complete rules for this mode, other update features, and any potential balance adjustments still await the official release of the full patch notes.