Beta Patch Notes - v0.99

✦AI summary9h

Beta Patch v0.99 focuses on extensive bug fixes, multiplayer stability, modding infrastructure reworks, and a new hard cap on maximum HP.

Images © Slay the Spire 2 via Steam

▲Buffs4

Fairy in a BottleNow correctly heals the player even when Max HP is 1.
Lizard TailNow correctly heals the player even when Max HP is 1.
Hand DrillFixed an issue where Burn cards breaking block would cause Hand Drill to apply Vulnerable to the player instead of the enemy.Player→Removed
TezcataraBrightest Flame:Fixed Brightest Flame being able to reduce player Max HP below 1.Below 1→1

✚Bug fixes3

IroncladHellraiser:Fixed Hellraiser power playing Strikes when no valid targets are present.
Multiplayer
- Fixed host and client generating different maps from the same seed.Different→Same
- Fixed multiple softlocks related to Potion Belt, Alchemical Coffer, and player death during card autoplay.

◆Other changes2

GeneralImplemented a hard cap on maximum HP for players, enemies, and pets to prevent overflow or unintended scaling.→999,999,999
ModdingReworked mod structure to use mod_manifest.json outside of PCK, allowing for better dependency management and load ordering.PCK required→JSON required

subjects affected (8)

tap to see balance history

General1 Ironclad1 Fairy in a Bottle1 Lizard Tail1 Hand Drill1 Tezcatara1 Multiplayer2 Modding1

How did this patch land?

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official notes

Slay the Spire 2 · Mar 13, 2026

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