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Undying
"Death is a choice. You picked no."
How do I install Undying?
Download the free ProjectMods desktop app, then install Undying for Slay the Spire 2 in one click.
</>What does Undying do?
Undying gives you absurd protection every single combat. The moment a fight starts, you get towering strength, a huge buffer against incoming damage, and steady healing that refills your bar between hits. Use it when you want to relax with a cup of tea while you climb the Spire, show off a goofy build that would normally get you killed, or learn a new character without the frustration of early wipes. Turn the mod off in the launcher to return to vanilla difficulty.
</>What is Undying?
Undying is a Slay the Spire 2 gameplay mod from ProjectMods that floors every damage instance at 1 HP, keeping you alive through bosses, elites, and unlucky AoEs while animations and sound still play. Perfect for learning new characters, testing goofy builds, or streaming a clean climb without a sudden game over mid-segment. One toggle in the ProjectMods launcher turns it on or off.
</>Common questions about Undying
What does Undying do in Slay the Spire 2?
Undying is a Slay the Spire 2 gameplay mod from ProjectMods that makes your run effectively unkillable. While the mod is enabled, every incoming damage instance still plays its animation and sound, but the numerical damage is floored so your HP cannot drop below 1. You take every hit, you see every number, but the death screen never comes. The protection refreshes for every fight on the Spire, from the first weakling on Act 1 all the way through the final boss room — no setup required between combats.
How do I control how strong Undying is?
Undying ships with a single toggle in the ProjectMods launcher, called Enabled, and that is the whole control surface. Flip it on before launching Slay the Spire 2 and the HP floor is active across every combat. Flip it off and you are right back to vanilla difficulty with full death risk. There is no slider, no percentage, no per-act override — the mod is deliberately binary. If you want a partial challenge instead of full invincibility, just toggle Undying off and run a different ProjectMods mod alongside your normal run.
Does combat still look and feel normal with Undying on?
Combat looks completely normal — that is the deliberate design of Undying for Slay the Spire 2. When a Jaw Worm slams you for 11, you still see the 11 fly off your portrait, you still hear the hit sound, the damage animation still plays, and any on-damage card effects in your deck still trigger. The only thing Undying changes is the final HP value: it gets clamped so you never go below 1. That means the fight still feels like a fight visually, but you cannot actually lose. ProjectMods built it this way so the run still looks honest in recordings and streams.
Why would I actually use Undying on a Slay the Spire 2 run?
Three scenarios where Undying earns its slot in your ProjectMods setup for Slay the Spire 2. First, learning a new character: when you pick up a fresh archetype and want to see how cards combo across all three acts without resetting after one bad elite, Undying lets the run breathe. Second, goofy builds: that all-curse deck or zero-block strategy you would never dare try on a real climb is suddenly fair game. Third, content creation: streamers and YouTubers can demo specific encounters, card interactions, or relic synergies on camera without the run ending mid-segment because of a single unlucky AoE.
Does Undying still protect me against bosses and elites?
Yes, Undying holds the floor against bosses, elites, and Act 4 finale fights in Slay the Spire 2 exactly the same way it does for trash mobs. The 1 HP floor applies to every enemy in the game, so there is no special case where a big telegraph or a multi-hit boss pattern can bypass it. A Reptomancer ultimate that would normally one-shot you at 8 HP still resolves visually, but lands you at 1 HP instead of game over. ProjectMods tested Undying through full climbs to confirm the protection holds end to end, from the first elite of Act 1 to the final boss.
What options does Undying include?
Enabled
Master switch. Toggle ON to activate this mod in-game. Toggle OFF to return to vanilla behavior.
Undying is a ProjectMods mod for Slay the Spire 2 that floors all incoming damage at 1 HP, so combat still plays out normally but your run never ends in death.
What features does Undying include?
- Floors all incoming damage at 1 HP so no enemy attack can ever finish you off
- Flip the Enabled toggle to switch between godmode and vanilla difficulty whenever you want
- Combat animations and sounds still play normally, so fights feel real even when they can't kill you
Best For
- Climb the Spire while half-paying-attention, sipping tea, or watching something on the second monitor
- Showcase joke decks and chaotic combos on stream without a bad Act 1 ending the recording early
- Learn a new character or boss pattern at your own pace without restarting every wipe
Quick Heal
Trigger the Heal Player hotkey to fully restore your HP any time you want. No campfire required.
Power Trip
Trigger the Apply Random Power hotkey during combat to slap a huge random buff onto yourself. Hit it again for another.
Max Energy
Start every turn with a massive energy pool so you can fire off every card in your hand without thinking about cost.
