Slay the Spire 2 thematic background
Back to News
UpdateSteam News2026-03-177 min

Slay the Spire 2 Patch Notes v0.99.1 (Main Branch): Stability Fixes Merged from Beta

The March 17 Slay the Spire 2 patch v0.99.1 moved earlier beta fixes to the main branch. This update is mostly stability, multiplayer sync, and localization cleanup for players who stayed on the default live branch.

One-line conclusion

v0.99.1 is the "okay, now main branch is safer" patch.

3 actions to do now

  • Main-branch reliability increased through merged beta fixes
  • Multiplayer and localization issues received broad cleanup
  • Use this as the baseline before assessing newer beta balance shifts

Next questions to open

v0.99.1 is the "okay, now main branch is safer" patch.

What changed in practice

Most of the patch is bug and stability work: controller behavior, crash reduction, multiplayer sync, and localization cleanup.

It is not a meta-defining balance update, but it does remove a lot of launch-week friction.

  • Main-branch reliability increased through merged beta fixes
  • Multiplayer and localization issues received broad cleanup
  • Use this as the baseline before assessing newer beta balance shifts

Who should care most

If you skipped beta or are still troubleshooting old launch bugs, this should be your first checkpoint.

If your issue started before March 17, update first and retest before trying complicated workarounds.

This page is a quick-reference guide for players checking launch-week status, practical next steps, and the most useful follow-up links after release.