Playtest notes 11 Sep 2025
Internal playtest115 entries45 balance changes36 bug fixes14 interface changes10 wording fixes6 art updates3 content additions1 audio update
This is a pre-release internal note from the closed playtest, quoted as it was written for testers. It describes a build that no longer exists; treat it as history, not as a description of the current game.
Another Thursday, another Byrdlett patch! This one brings a brand new Act 3 boss and a whole host of balance and UX changes. Many changes have been made to multiplayer specifically, so be sure to try out a multiplayer run if you haven't in a while! Also, the art additions that didn't make it into last week's patch have now actually been added.
Items in this note
34 cards
Relics, potions and powers
Funerary Mask
Gnarled Hammer
Joss Paper
Lasting Candy
Poison
Strength
Block Next Turn
Dexterity
Doom
Flutter
Hard to Kill
Intangible
Stratagem
VulnerableEnemies and events
Content
Potions & Relics
- Reworked Gnarled Hammer
Enemies
- Added new Act 3 boss, The Illusionist
- Reworked Snapping Jaxxfruit
Balance
Ironclad
- Nerfed Fight Me card: upgrade damage decreased from +4 -> +2
- Buffed Flex card: Strength gain increased from 2(4) -> 3(5)
- Nerfed Hone card: damage decreased from 6(9) -> 4(6)
- Buffed Inferno card: damage increased from 4(6) -> 6(9)
- Changed Stomp card:
- Energy cost increased from 1 -> 2
- Damage increased from 7(10) -> 12(15)
- Changed Ironclad Epochs:
- Ironclad Epoch 2 now unlocks Cruelty instead of Colossus
- Ironclad Epoch 5 now unlocks Drum of Battle instead of Howl From Beyond
- Ironclad Epoch 7 now unlocks Blood Wall and Inferno instead of placeholder Strikes
Silent
- Nerfed Anticipate card: Dexterity gain decreased from 4(6) -> 3(5)
- Buffed The Hunt card: upgrade damage increased from +3 -> +5
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Defect
- Changed Defragment card: rarity increased from Uncommon -> Rare
Necrobinder
- Changed Funerary Mask relic: Soul cards are no longer upgraded
- Changed Pull Aggro card:
- Summon decreased from 6(7) -> 4(5)
- Block increased from 6(7) -> 7(9)
- Nerfed Reanimate card: cost increased from 2 -> 3
Regent
- Changed Regent Epoch 5: now unlocks Lunar Blast instead of Hidden Cache
- Nerfed Quasar card: Star cost increased from 1 -> 2
Colorless Cards
Ancients
- Updated Neow bundles for all characters
Enemies
- Changed Fogmog:
- Damage decreased
- HP increased from 71(73) -> 74(78)
- Reworked Illusions:
- Instead of healing to full HP and becoming stunned, Illusions now revive next turn at full HP, similar to Decimillipede
- No longer keep their debuffs after dying, preventing them from being trivialized by Doom or Poison
- All Illusions are now also Minions
- Thanks to Vex'd for the suggestions!
- Changed Kin Priest:
- Strength gain decreased from 3(4) -> 2(3)
- Buffed Fossil Stalker: Lash move damage increased from 2(3) -> 3(4)
- Nerfed Kin Follower: Boomerang move damage decreased from 3x2 -> 2x2
- Nerfed Small Twig Slime: Tackle move damage decreased from 5(6) -> 4(5)
Events
- Changed Battleworn Dummy event: weak and medium modes have less HP
- Changed Punch Off event:
- "Nab" option now gives you an Injury instead of damaging you
- Removed "Distract With Potion" option
- Changed Trash Heap event: can no longer be rolled if you have 1 HP
- Changed Tablet of Truth event (previously Perilous Prospects): the fifth option leaves you with 1 HP
Multiplayer
- Buffed Believe In You card: no longer Exhausts
- Buffed The Tank card: Energy cost decreased from 2(1) -> 1(0)
- Buffed Mimic card: no longer Exhausts
Art
- Added Slime VFX for Twig Slime
- Added portrait art for the following cards:
- Child of the Stars
- I am Invincible
- Void Form
- Added Fossil Stalker animations
Audio
- Added SFX and BGM for Knowledge Demon
User interface & experience
General
- Added controller nav to multiplayer first run warning, Timeline, and profile screens
- Added controller support for healing teammates at Rest Sites
- Added reveal requirement hovertips for Neow and Silent Epochs
- Added a reminder message in the Timeline screen if any of your obtained Epochs have not been revealed
- Added animation that plays when multiplayer players split map votes
- Added more padding at the bottom of card pile screens
- Players can now preview downgraded version of upgraded cards in card inspection window
- Back button is disabled in Timeline if the only available Epoch is the Neow one
- Dualcast card now only shows the Evoke preview for your rightmost orb
- Fixed an issue that made it too easy to accidentally cancel a card play while dragging a card close to the bottom of the screen
- Hiding the debug Reset Progress button as we now have profiles
Multiplayer
- Added temp animation for players visually reviving at the end of combat in multiplayer
- You can no longer die to any event options in multiplayer
- When all enemies have Vulnerable and you have an attack in your hand that targets all enemies, the extra damage is not previewed until you start dragging the card
Wording
- Renamed Perilous Prospects event to Tablet of Truth
- Reworded Epoch Unlocked -> Epoch Discovered
- Fixed a typo in Brain Leech event
- Fixed a typo in the Sapphire Seed event
- Improved Flutter power wording
- Hard to Kill power's wording has been updated to be more consistent with Intangible power
- Made Sharp and Nimble have consistent wording
- Rend card is now worded more similarly to other dynamic damage cards like Perfected Strike
- Updated text for Ranwid the Elder event
- Updated wording for Morphic Grove event
Bug fixes
General
- Cards with target-dependent numbers in their text (like Rend) no longer appear to remember their target after using right click to cancel card play
- Dying from Max HP loss via an effect like Perilous Prospects event or Brightest Flame card no longer causes a softlock
- Effects that allow you to choose a card from your hand no longer appear to change your hand order when you switch between selected cards
- Fixed an issue where ending combat while a card is in the middle of being added to your draw/discard/exhaust pile could cause the card to get stuck on screen
- Fixed an issue where, if an AoE attack (like Howl from Beyond card) had Replay and killed the final living enemy during the first play, the second play would cause a softlock
- Fixed being unable to navigate main menu after your first run
- Fixed Powers FTUE getting stuck on screen when in controller nav
- Fixed room icon in top bar not having hovertip
- Gold spent when removing a card in shop now counts as "gold spent" in run history
- Opening pause menu via shortcut now ensures any previously hovered cards get unhovered
- Opening the Daily Climb menu no longer updates your preferred Ascension level
- You can no longer click on the first map node before the Map FTUE appears
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Ironclad
- Fixed Unmovable card missing its upgrade
- Heavy Blade card now includes a strength hovertip
- Stomp card now properly glows gold after you've played 3 attacks
Silent
- Blade of Ink card now properly triggers only when a Shiv is generated, instead of also triggering when a Shiv is played
- Tracking card no longer has a Poison tooltip
Defect
Regent
- Glitterstream card now properly doubles its Block next turn if you've previously played Unmovable card
Colorless Cards
- Fixed softlock when Stratagem power triggers during the enemy turn
Potions & Relics
- Fixed an issue where, if Joss Paper relic was triggered by an Ethereal Exhaust, the drawn card would be immediately discarded
- Lasting Candy relic now correctly only applies to combat card rewards
- Light Bulb relic properly triggers if the player takes HP loss but no other damage in a combat
Ancients
- Darv is now properly unlockable
- Seeking Tentacle relic can be used at any card reward
Enemies
- Fixed Ceremonial Beast BGM win transition
- Fixed Kin Priest BGM win transition
- Fixed Insatiable BGM win transition
- Hovering over Exoskeleton enemy with an attack that deals more than 9 damage now properly reduces the amount of damage displayed on the card
- Vine Shambler VFX position is now positioned correctly at the player's feet
Events
- Future of Potions event is no longer affected by Ruby Earrings relic
- The Future of Potions event and Seeking Tentacle relic now interact correctly
- Readded missing Trash Heap event card art
- The rewards screen no longer comes up if you die to an event option that gives rewards
- Potions are now prevented from being discarded during Ranwid the Elder event
Multiplayer
- If an internal error occurs while joining, you're not stuck loading forever

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Fossil Stalker
Kin Priest
Ceremonial Beast
Exoskeleton
Fogmog
Kin Follower
Knowledge Demon
The Insatiable
Vine Shambler