Slay the Spire 2 beta patch new solo and co-op modes, Digi Mart USA News: Mega Crit plans to release its next major Slay the Spire 2 beta patch on November 12, 2026, and it will be the first to include experimental game modes the studio has kept under wraps for months. The date was set in the studio’s Neowsletter, which describes the release as “currently planned.” At the time of reporting, Mega Crit had not yet posted patch notes on Steam.
The studio has deliberately kept the details limited. Co-founder Casey Yano confirmed in the newsletter’s Q&A that the new modes will work in both single-player and multiplayer, but he did not say how many modes are coming or how they will play.
Mega Crit has said the content will have more impact the less is revealed beforehand.
Experimental modes have been on the early access roadmap since launch. In August, the studio listed them as in active development alongside an alternate Act 2 and a new character.
Mega Crit has not said whether either of those will arrive in this patch.
The gap between updates has been longer than usual. Mega Crit had been shipping beta patches every two weeks, but the previous one, v0.111.0, arrived on August 13. The team says it has spent the time since, aside from a one-week studio break, building larger content that could not be developed alongside regular balance updates.
The new content will initially be exclusive to the beta branch while Mega Crit refines it. Players can opt in through Steam by opening the game’s Properties menu, selecting Betas, and choosing the public-beta branch.
Players on the default branch will also receive an update bringing them up to date with v0.111.0, including card reworks, balance changes, performance improvements, Indonesian localization, and low HP idle animations for all playable characters.
Slay the Spire 2 entered early access on Steam on March 5, 2026, and Mega Crit said it sold 3 million copies in its first week. Co-op has been a large part of that success, and Yano said many players only play multiplayer, which is why the studio wants to give that mode more longevity.
Additional acts are also in development. Mega Crit expects beta players to be sharing balance feedback on the new content by the time its next newsletter arrives, and it has also unveiled a new playable character.
