Slay the Spire 2 Update 0.107.1 Introduces Bestiary, Steam Workshop Support, and Major Balance Changes

by Ali Haider

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!

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