Mega Crit has released Major Update #2 for Slay the Spire 2, bringing one of the game’s largest updates since its Early Access launch. Version 0.107.1 introduces the long-requested Bestiary, official Steam Workshop support, extensive balance changes, and a major overhaul to the game’s random number generation system.
The update also replaces an Act 3 boss, adds new relics, reworks enemies and cards across multiple characters, improves multiplayer functionality, and delivers a substantial list of quality-of-life improvements, bug fixes, performance enhancements, and modding tools.
Patch Notes
New Features
Bestiary
- Added the Bestiary to the Compendium.
- Track encountered monsters.
- View enemy moves and animations.
- Future updates will expand the Bestiary with:
- Enemy statistics
- Lore entries
- Additional information
Steam Workshop Support
- Added official Steam Workshop integration.
- Browse and install mods directly through Steam Workshop.
- Mods automatically download across Steam devices.
- Added tools for creators to upload mods directly to Workshop.
Gameplay Changes
RNG Rework
- Replaced the previous pseudo-random number generator implementation.
- Implemented xoshiro256** RNG.
- Removed correlations between unrelated random events.
- Improved overall randomness and run consistency.
Content and Balance Updates
General
- Added new multiplayer Badges:
- Damage Leader
- Debuffer
- C-c-c-Combo
- Terminal modifier can no longer reduce players below 1 HP.
Ancients
New Neow Relics
- Added Kaleidoscope.
- Added Fishing Rod.
- Added Silken Tress.
Relic Changes
- Reworked Pumpkin Candle.
- Buffed Scroll Boxes.
- Buffed Booming Conch.
- Buffed Fury.
- Buffed Nutritious Soup.
- Moved Seal of Gold to a different reward pool.
- Updated Pael’s Eye interactions with extra turns and status effects.
Enemy Changes
New Boss
- Removed the Act 3 boss Doormaker.
- Added a new Act 3 boss named Aeonglass.
Enemy Reworks
- Reworked Infested Prism.
- Reworked Axebots into a single stronger Axebot encounter.
- Reworked Skulking Colony.
- Updated Haunted Ship behavior.
- Updated Punch Construct behavior.
Enemy Balance
- Adjusted enemy HP scaling at low and high Ascension levels.
- Buffed Soul Fysh.
- Nerfed Ruby Raider Assassin.
- Nerfed Vantom at lower Ascensions.
- Reduced Waterfall Giant healing at lower Ascensions.
Event Changes
- Updated Slippery Bridge event card removal behavior.
- Added special interactions for multiple Lantern Key cards in single-player runs.
Potions and Relics
- Buffed The Boot relic so its damage increase also affects Osty’s attacks.
Card Balance Changes
Colorless
- Buffed Gold Axe.
- Nerfed Fasten.
Ironclad
- Reworked Conflagration.
- Reworked Drum of Battle.
- Buffed Howl From Beyond.
- Buffed Entrench.
- Buffed Unrelenting.
Silent
- Reworked Follow Through into Scare.
- Updated Nightmare.
- Reduced Predator rarity.
- Buffed Untouchable.
- Buffed Pounce.
- Nerfed Blade of Ink.
Regent
- Reworked Parry.
- Reworked Sword Sage.
- Updated Astral Pulse.
- Updated Tyranny.
- Updated Sealed Throne.
- Buffed Crescent Spear.
- Buffed Royalties.
- Buffed Furnace.
- Buffed Monarch’s Gaze.
- Nerfed Reflect.
- Nerfed Bulwark.
- Nerfed Patter.
- Nerfed Minion Sacrifice.
Necrobinder
- Buffed Death March.
- Buffed Sic ‘Em.
- Buffed The Scythe.
- Nerfed Debilitate.
Defect
- Updated Fusion.
- Updated Shatter.
- Updated Tesla Coil+.
- Buffed Hyperbeam.
- Buffed Synthesis.
- Buffed Uproar.
- Buffed Infused Core relic.
Multiplayer Changes
- Reduced multiplayer scaling for:
- Artifact
- Slippery
- Skittish
- Reintroduced Stratagem to the multiplayer colorless pool.
- Buffed Tag Team.
- Updated Fossil Stalker multiplayer behavior.
Quality-of-Life Improvements
- Improved Gremlin Merc gold rewards when Fat Gremlin escapes.
- Added preferred Ascension support for random characters.
- Added improved error messaging.
- Added Ascension tutorial popups.
- Improved leaderboard navigation and rankings.
- Added controller support improvements across multiple menus.
- Added additional UI feedback and visual updates.
User Interface Updates
- Added global leaderboard rank pagination.
- Added nearby-player leaderboard comparisons.
- Improved controller navigation.
- Updated card text backgrounds.
- Improved enemy and relic tooltips.
- Added new multiplayer error reporting.
Art Updates
- Added new Epoch artwork for multiple cards.
- Updated existing card art.
- Added portrait art for numerous cards.
- Added new character animations.
- Added new enemy animations and visual effects.
- Added additional Phobia Mode alternate artwork.
Audio Updates
- Added new music tracks for:
- Soul Fysh
- Kaiser Crab
- Added sound effects for:
- Kaiser Crab
- Skulking Colony
- Hyperbeam
- Card pile interactions
Writing and Localization
- Improved relic and card descriptions.
- Standardized wording across multiple cards.
- Added additional translated text.
- Fixed translation issues in multiple languages.
Bug Fixes
General
- Fixed save corruption issues after crashes and power outages.
- Improved save reliability.
- Fixed numerous crashes and softlocks.
- Fixed cloud synchronization issues.
- Corrected scoring and leaderboard bugs.
- Fixed controller and input issues.
- Fixed language and UI inconsistencies.
Gameplay
- Fixed relic, event, enemy, card, and combat bugs across all playable characters.
- Fixed multiplayer synchronization issues.
- Fixed numerous state divergence problems.
- Fixed additional Ancient, Enemy, Event, Relic, and Potion interactions.
Performance
- Reduced combat stuttering when effects appear for the first time.
Modding
- Prevented removed or broken mods from deleting player progress.
- Improved Steam mod support.
- Added STS2.dll XML documentation support.
Slay the Spire 2 Update 0.107.1 launched on June 19, 2026, for Windows, macOS, and Linux via Early Access. The update introduces the Bestiary, Steam Workshop support, RNG improvements, a new Act 3 boss, extensive balance changes, and hundreds of fixes and improvements.
Have you noticed these changes? Share your thoughts in the comments!

