Act3Buff
🟡 Updated this yearPreview

🔍 Analysis
- 🏆 #454 of 748 Gameplay mods in this game by downloads
📋 About This Mod
Hardcore Act 3. Significantly buffs the bosses as well as some enemies/elites from Act 3 to make it a true struggle. Highly configurable.
Significantly buffs the bosses as well as some enemies/elites from Act 3 to make it a true struggle.
Some players have said that Act 3 doesn't challenge you enough, and that most decks that reach Act 3 tend to beat it fairly easily. I've also felt that the Act 3 bosses aren't tough enough to warrant being final bosses - at least until Act 4 is released- so I've buffed everything in Act 3 that feels like it could use a bit more power... perhaps too much.
This includes amping up the unique aspects of each boss, giving elites new buffs, and giving some additional power to a few of the hallway fights. Details for the changes are listed below.
You can adjust, enable or disable ANY of the mod's changes using the Mod Configuration options in the main menu.
Dependencies:
- []Baselib[/]
Installation:
-
[]Place the 'Act3Buff' folder inside the 'mods' folder in your Slay The Spire 2 installation directory (inside steamapps > common > Slay The Spire 2)[/]
Changes:
BOSSES
- Max health increased (489(512) => 600(650))
Doormaker is in a good place after the recent patches, but his max health has been increased further to give him a 'damage race' niche that the other bosses don't have. This increases the pressure put on by the Hunger phase as you must make your dwindling deck last for longer.
- After its two opening moves, Torch Head Amalgam performs its multi-attack every other turn.
- Torch Head Amalgam's multi-attack now adds 1 Burn to your draw pile.
Queen's card affliction is now truly oppressive, requiring you to have a lot of draw options to deal with it properly. The Torch Head Amalgam also does some extra damage and adds statuses straight to your draw pile, preventing you from stalling it out and rewarding you for bursting it down quickly.
UPDATE: Binding 4 cards felt too restrictive, so it has been reduced down to 3 again by default. You can still change the amount in config.
Test Subject
- Max health of all phases reduced (100, 200, 300 (111, 212, 313) => 90, 180, 270 (100, 200, 300)).
- Base damage of all phase 1 and 2 attacks reduced by 2(3) to compensate for initial Burning Growl strength gain.
- Burning Growl burns reduced (3(5) => 2(3)).
- Gains 1 Intangible on the first turn of phase 1 and 2.
- Performs a Burning Growl on the first turn of each phase.
Gives the Test Subject more of a Nemesis flavor to it. Gives the early phases more flavor and fills your deck with burns, though the intent is to create a new custom status card soon.
UPDATE: The Nemesis buff felt like a ham-fisted approach to adding more difficulty, so the Phase 1 & 2 Intangib
📊 Mod Details
- Game
- Slaythespire2 Mods
- Author
- hex3
- Version
- 1.0.4
- Downloads
- 400
- Endorsements
- 4
- Category
- Gameplay
- Created
- 4/5/2026
- Updated
- 4/29/2026
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