Patches and Updates

0:01 The latest Slay the Spire 2 update on the main branch is v0.107.1, "Major Update #2", released on Jun 19, 2026, which brought four beta patches to everyone at once: Steam Workshop support, the Bestiary, the new Act 3 boss Aeonglass in place of the Doormaker, and a rework of the game's random number generator. The newest patch of all is v0.111.0 of Aug 14, 2026, but it and the four betas before it (v0.108.0 to v0.110.0) are on Steam's opt-in public-beta branch only, so most players do not have them. Mega Crit patches on Thursdays, tests changes on the beta for weeks, then moves them to the main branch in batches; in August 2026 it said updates would come "a bit further apart" while it builds an Alternate Act 2 and a new character, and its September 2026 Neowsletter gave no date for the next patch.

Quick facts

Every patch

Source: Mega Crit's patch notes on Steam, linked in each row, read Oct 26, 2026. "Main" means everyone has it; "Beta" means only players who opted into the public-beta branch.

Launch hotfixes (v0.98.1 to v0.98.3)

The first week brought three main-branch hotfixes. v0.98.1 fixed softlocks and crashes, including a multiplayer disconnect after the Act 1 boss that blocked new runs and the Timeline screen, and reminded players that F2 sends feedback in game. v0.98.2 fixed a black screen at launch caused by the Sentry crash reporter, a Whispering Earring softlock with Osty, and Epoch unlocks failing after multiplayer runs. v0.98.3 "Fixed more instances of players getting stuck at the timeline."

The beta branch opens (v0.99 and v0.99.1)

v0.99 on Mar 13, 2026 opened the opt-in public beta: in the Steam Library, Properties, Game Versions and Betas, choose "public-beta". It capped HP at 999,999,999 for players, enemies and pets, and reworked modding so each mod ships a manifest that can declare dependencies and whether it affects gameplay. v0.99.1 moved those changes to the main branch on Mar 17. How to join the beta is also on Early Access and Roadmap.

v0.100.0: the anti-infinite pass and Phobia Mode

20:36 Mega Crit called v0.100.0 (Mar 20, 2026, beta) "the first BIG post-launch patch," whose main aim "is to make infinites harder to achieve." It reworked the Ironclad's Dominate, Expect a Fight, Spite and Stoke, turned the Silent's Prepared into Prepare, and changed the Regent's Glow, the Colorless Hidden Gem and the Doormaker boss. PCGamesN's headline called it stamping out infinites; how infinites work is on Deck-Building Strategy.

It changed numbers across every character. The Ironclad's Break went from cost 2 to 1 and 20(25) to 20(30) damage, the Silent's Grand Finale from 50(60) to 60(75), the Regent's Void Form became Ethereal and the Necrobinder's Banshee's Cry went from cost 6 to 9(7). The multiplayer cards were nerfed: Beacon of Hope can no longer stack, Believe in You gives 2(3) Energy instead of 3(4), and Huddle Up now Exhausts (see Multiplayer Cards).

It added two Neow relics, Hefty Tablet ("Choose 1 of 3 Rare cards to add to your Deck. Add 1 Injury to your Deck.") and Neow's Talisman ("Upgrade 1 of your Strikes and 1 of your Defends."). Shop relics cost 25 Gold less, gold-making relics such as Bowler Hat no longer appear at the Merchant, and Epochs can no longer be earned in Daily or Custom runs. Cards removed by a patch now become a "Deprecated Card" in saved runs.

It added Phobia Mode, a Settings tickbox that gives alternate visuals to the Hive backgrounds, The Insatiable, Phrog Parasite, Wrigglers, Terror Eel and Entomancer. Relics at treasure chests can be skipped in single-player, and map drawings can be hidden in co-op.

v0.101.0: designer's notes and the map

v0.101.0 (Mar 27, 2026, beta) was the first with Anthony Giovannetti's design commentary. It reverted Prepared, Capture Spirit and Borrowed Time to their launch versions, and ruled that "Elites can no longer spawn on floor 6 to better match StS1." It buffed the Regent (Parry's Block 8(11) to 10(14), Refine Blade's Forge 6(10) to 9(13)), cut the Waterfall Giant's HP from 250(260) to 240(250), reworked the Doormaker again to be "less random," and raised the in-game feedback limit from 500 to 8,000 characters.

v0.102.0: Badges and Ascension 6 Inflation

v0.102.0 (Apr 3, 2026, beta) added Badges, end-of-run notes such as beating a boss without losing HP (see Achievements and Badges). It replaced Ascension 6, Gloom ("Less rest sites."), with Inflation: Merchant card removal starts at 100 Gold and rises by 50 per removal instead of 25 (see Ascension). The Silent's Blade of Ink became "Add 2(3) Inky Shivs into your Hand," with the new Inky enchantment, and the Necrobinder's Borrowed Time became "Gain 4(6) energy. Cards cost an additional energy this turn." Skipping chests was turned off in co-op because "Too many people thought it was the Proceed button."

v0.103.0: friends-only leaderboards and Not Yet

v0.103.0 (Apr 10, 2026, beta) made Daily leaderboards show only friends, because Mega Crit does not want "invasive anti-cheat," ranking by win, then Badges, then speed. It added three Neow relics (Neow's Bones, Phial Holster and Winged Boots, which lets you ignore map paths 3 times), the Ironclad's Rare Not Yet ("Heal 10(13) HP. Exhaust.", cost 2), removed Grapple and moved the Silent's Acrobatics to Uncommon.

It softened Act 1: the Skulking Colony's HP went from 74(79) to 70(75), the Byrdonis's HP was lowered and the "Tunneling Twosome" fight left the Hive. Giovannetti said he planned "to shift some of the difficulty from Act 1 -> Act 3." The v0.103.1 hotfix fixed crashes and the score at Ascension 10.

Major Update #1 (v0.103.2, Apr 17, 2026)

Major Update #1 brought every beta change from v0.100.0 to v0.103.1 to the main branch. Its headlines were Ascension 6 Inflation, cheaper shop relics, better map generation, Not Yet, Inky Shivs, the Regent changes, the Borrowed Time rework, five new Neow relics and the Doormaker reworks, plus Badges, friends-only leaderboards, Phobia Mode and fixes for the multiplayer "Error 5008" disconnects. Mega Crit wrote that the Regent's card pool "has seen more buffs than any other character," and the Defect "the least amount of changes."

v0.104.0: the Ascension direction

v0.104.0 (Apr 24, 2026, beta) said "the base difficulty is quite hard right now," and began making low Ascensions easier and high ones harder; a message after your first win now explains Ascension. It added three Badges (Damage Leader and Debuffer in co-op, and C-c-c-Combo, "Played 20 cards in a single turn."), reworked the Ironclad's Conflagration ("Deal 2 damage to ALL enemies 4(5) times.") and Drum of Battle, moved the Regent's Parry Block onto the Sovereign Blade, merged the Axebots fight into one stronger Axebot, and lowered enemy Artifact, Slippery and Skittish scaling in co-op.

v0.105.0: the Bestiary, and the Doormaker out

0:36 v0.105.0 (May 8, 2026, beta) added the Bestiary to the Compendium and replaced the Act 3 boss Doormaker with Aeonglass, because "he was over the complexity threshold of what we want and had lingering issues." Mega Crit had said two weeks earlier that the Doormaker was "slightly weaker than the other Act 3 bosses". The patch added three Neow relics (Kaleidoscope, Fishing Rod and Silken Tress), made Tezcatara's Pumpkin Candle go out after 5 combats unless Kindled at rest sites, buffed the Defect's Hyperbeam from 26(34) to 28(36), and fixed saves lost after a crash or power cut. See Bosses and Glory.

v0.106.0 and the May bug fixes

4:07 v0.106.0 (May 22, 2026, beta) reworked the Infested Prism and Aeonglass's moves, raised the Skulking Colony back to 75(80) HP, renamed the Silent's Follow Through to Scare, moved Predator to Common and raised Pounce from 12(18) to 14(20); leaderboards gained a global rank paginator. On May 29 a separate "May Bug Fixes" update moved many beta bug fixes, including Linux crash and audio fixes, to the main branch without the balance changes.

Major Update #2 (v0.107.1, Jun 19, 2026)

1:30 Major Update #2 was "4 patches in 1": every beta change from v0.104.0 to v0.107.0 reached the main branch, including the Bestiary, Aeonglass, the reworked Infested Prism, the single Axebot, the three new Neow relics and the new Badges. v0.107.0 had added Juggernaut 6(8), Monarch's Gaze at cost 2(1) and a preferred Ascension for the random character option. This is the version every player has today.

It reworked the random number generator. Engineer Ed Lu wrote that the separate random generators made from a run's seed were correlated, so an Underdocks first act, for example, made certain Neow's Bones curses such as Debt far more likely; the fix replaced the generator with xoshiro256** and credited player tckmn's eight-hour investigation stream. PC Gamer covered the fix.

It launched Steam Workshop support. The game "has had an integrated mod loader from day one," and mod authors upload with Mega Crit's tool; the base game no longer deletes progress from mods that are removed or fail to load. See Mods and Steam Workshop. It also adjusted enemy HP at the Ascension extremes, for example the Owl Magistrate from 234(243) to 231(247), and added new Epoch art.

v0.108.0: 15 new multiplayer cards (beta)

19:00 v0.108.0 (Jul 3, 2026) is beta only. It added multiplayer cards for every character: the Ironclad's Midnight (cost 12, 99(120) damage, cheaper for each card anyone Exhausts), Blaze and Outrage; the Silent's Blade Symphony, Concoct and Fade; the Regent's Plot and Constellation; the Necrobinder's Underworld, Soulbound and Cacophony; the Defect's Hibernate, One For All and Imitation Learning; and the Colorless The Ball. PCGamesN counted 15. Tank became "Take 50% additional damage from enemies. Allies take 50% less damage from enemies.", Beacon of Hope rose from cost 1 to 2, enemy Block scaling was cut in 2-player games, Custom runs gained a Randomize button, and unmodded saves are now copied into the modded save folder.

v0.109.0: Neow's Sacrifice and longer seeds (beta)

v0.109.0 (Jul 17, 2026) is beta only. It added two Neow relics, Dowsing Rod (a Quest card that becomes Abundance after 5 more ? rooms) and Neow's Sacrifice (the Ambergris potion, "Heal for 50% of your max HP. Take an extra turn after this one.", plus the Guilty curse). It reworked Nonupeipe's Diamond Diadem to "Start combat with 20 Block. Block is not removed at the start of your next turn.", cut Aeonglass's Ebb from 26(32) to 22(26), raised the Ironclad's Demon Form from 2(3) to 3(4) Strength, and cut Midnight from 99(120) to 60(72). Seeds became 12 characters long, nearly any potion can be used on another player, the Regent gained the multiplayer card Tutor, and Traditional Chinese was added. v0.109.1 fixed Traditional Chinese plurals.

v0.110.0: keyboard-only mode (beta)

v0.110.0 (Jul 31, 2026) is beta only. It added keyboard-only controls, a map "Share" button that screenshots the whole map, and effects for characters' Form powers. Outbreak became a Rare Skill ("Apply 9(12) Poison to ALL enemies. Poison triggers immediately."), Scare became Sidestep, and Mirage and Pillar of Creation went back toward their earlier versions. It fixed a bug so "Uncommon cards show up slightly more often (as intended)" and repaired saves whose lost Epoch unlock blocked the Timeline.

v0.111.0: the last patch before the content push (beta)

1:41 v0.111.0 (Aug 14, 2026) is beta only. It added Indonesian, low-HP idle animations for every character and buffs to the Axebot and other enemies at high Ascension. It reworked Expect a Fight to "Gain 15(16) Block. Gains 5(8) additional Block for each Strength you have." (cost 3) and the Defect's Hyperbeam to "Deal 24(30) damage to ALL enemies. Lose 3 Focus this turn." The notes warned "there may be a longer wait in general for the next patch," and the team took its annual break in the last week of August, per the September 2026 Neowsletter.

Nerfs and the review waves

Balance patches drew waves of negative Steam reviews. Steam's histogram shows 15,907 negative reviews in the week of Mar 19 (the anti-infinite beta), 22,345 in the week of Apr 16 (Major Update #1) and 14,921 in the week of May 7 (the Doormaker's removal), and Steam marks the game as having had "off-topic review activity." PC Gamer reported that a Mega Crit co-founder "wasn't bothered" by the backlash. The full story is on Reception and Sales.

Frequently asked questions

What is the latest Slay the Spire 2 patch? The latest Slay the Spire 2 patch is v0.111.0 of Aug 14, 2026, on the public beta only. The latest main-branch version, which every player has, is v0.107.1, Major Update #2, of Jun 19, 2026.

What was in Slay the Spire 2 Major Update #2? Slay the Spire 2's Major Update #2 (v0.107.1, Jun 19, 2026) brought four beta patches to the main branch: Steam Workshop support, the Bestiary, Aeonglass in place of the Doormaker, a new random number generator, three Neow relics and three Badges.

How do I get the Slay the Spire 2 beta patch? In the Steam Library, open Slay the Spire 2's Properties, then Game Versions and Betas, and choose "public-beta", as Mega Crit explained with v0.99. Beta patches reach the main branch later in a Major Update.

Why was the Doormaker removed from Slay the Spire 2? Slay the Spire 2's Doormaker was replaced by Aeonglass in v0.105.0 because, Mega Crit wrote, "he was over the complexity threshold of what we want and had lingering issues." The change reached the main branch on Jun 19, 2026.

Did Slay the Spire 2 nerf infinites? Slay the Spire 2's v0.100.0 (Mar 20, 2026) aimed "to make infinites harder to achieve," reworking cards such as Dominate, Stoke and Prepared. It reached the main branch with Major Update #1 on Apr 17, 2026.

When is the next Slay the Spire 2 update? Slay the Spire 2's next patch has no date: Mega Crit wrote on Sep 25, 2026 that it "can't give a specific timeline or details for the next patch." It is working on an Alternate Act 2 and a new character.

Sources

• Slay the Spire 2’s Next Big Major Patch - Explained in 9 Minutes, MidMillennial, Jun 19, 2026 (video)
• Slay the Spire 2: Q&A with Anthony & Dani of Mega Crit, Manifest Conference, Jul 10, 2026 (video)
• Beta Patch v0.105.0 Review | A New Boss! also shatter is broken now - Slay the Spire 2, NaveGreed, May 8, 2026 (video)
• The game just got 200% harder | Spire 2 Patch Rundown V0.106.0, JapaneseExport, May 22, 2026 (video)
• FIFTEEN new OP multiplayer cards?? | Spire 2 Patch Rundown V0.108.0, JapaneseExport, Jul 3, 2026 (video)
• Hyperbeam is FINALLY good?! | Spire 2 Patch Rundown v0.111.0, JapaneseExport, Aug 14, 2026 (video)
• Hotfix Patch Notes - v0.98.1, Mega Crit (Steam news), Mar 6, 2026
• Hotfix Patch Notes - v0.98.2, Mega Crit (Steam news), Mar 7, 2026
• Hotfix Patch notes - v0.98.3, Mega Crit (Steam news), Mar 10, 2026
• Beta Patch Notes - v0.99, Mega Crit (Steam news), Mar 13, 2026
• Patch Notes - v0.99.1, Mega Crit (Steam news), Mar 17, 2026
• Beta Patch Notes - v0.100.0, Mega Crit (Steam news), Mar 20, 2026
• Beta Patch Notes - v0.101.0, Mega Crit (Steam news, Anthony Giovannetti), Mar 27, 2026
• Beta Patch Notes - v0.102.0, Mega Crit (Steam news, Anthony Giovannetti), Apr 3, 2026
• Beta Patch Notes - v0.103.0, Mega Crit (Steam news), Apr 10, 2026
• Beta Hotfix Patch Notes - v0.103.1, Mega Crit (Steam news), Apr 16, 2026
• Major Update #1 - v0.103.2, Mega Crit (Steam news), Apr 17, 2026
• The Neowsletter - April 2026, Mega Crit (Steam news, Casey Yano), Apr 17, 2026
• Beta Patch Notes - v0.104.0, Mega Crit (Steam news), Apr 24, 2026
• Beta Patch Notes - v0.105.0, Mega Crit (Steam news), May 8, 2026
• Beta Hotfix Notes - v0.105.1, Mega Crit (Steam news), May 9, 2026
• Beta Patch Notes - v0.106.0, Mega Crit (Steam news), May 22, 2026
• Beta Hotfix Patch Notes - v0.106.1, Mega Crit (Steam news), May 23, 2026
• May Bug Fixes, Mega Crit (Steam news), May 29, 2026
• Beta Patch Notes - v0.107.0, Mega Crit (Steam news), Jun 4, 2026
• Major Update #2 - v0.107.1, Mega Crit (Steam news, Ed Lu and Casey Yano), Jun 19, 2026
• Beta Patch Notes - v0.108.0, Mega Crit (Steam news), Jul 3, 2026
• Beta Patch Notes - v0.109.0, Mega Crit (Steam news), Jul 17, 2026
• Beta Hotfix Patch Notes - v0.109.1, Mega Crit (Steam news), Jul 25, 2026
• Beta Patch Notes - v0.110.0, Mega Crit (Steam news), Jul 31, 2026
• Beta Patch Notes - v0.111.0, Mega Crit (Steam news), Aug 14, 2026
• The Neowsletter - September 2026, Mega Crit (Steam news), Sep 25, 2026
• appreviewhistogram 2868840, Valve (Steam), Oct 26, 2026
• Slay the Spire 2 is stamping out infinites, and you're not prepared for what we've lost, PCGamesN, Mar 20, 2026
• Slay the Spire 2 just got 15 new cards out of nowhere, including some big co-op heavy hitters, PCGamesN (Ken Allsop), Jul 3, 2026
• Slay the Spire 2 patch fixes RNG bug after a fan's '8 hour descent into madness' proves it exists, PC Gamer (Harvey Randall), Jun 19, 2026
• Mega Crit co-founder says he wasn't bothered by the Steam backlash to Slay the Spire 2's beta balance patch, PC Gamer, 2026