Slay the Spire,
Decide Faster.

Not a wiki for Slay the Spire 2. A 30-second decision engine: fail states, tempo, and win thresholds—right when you need them.

I’m about to fight
Boss 30s Cheat Sheet →
Run killers, tempo plan, desperation mode.
I need a pick
What to Draft Next →
Weighted synergies, conflicts, priority list.
We’re in co-op
Stop Team Conflicts →
Redline monitor + nitrous synergies.
Early Access note: content may change after patches — we show decision logic, not lore.

Tactical Hubs

Latest Patch: March 05, 2026 EA Patch
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Boss Emergency Room

30-second fail-state checklist + tempo plan for every boss.
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Co-op Conflict Radar

Resource clashes + instant 1+1>2 synergies for 4-player runs.
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Starter Fail States

Stop dying fast: thresholds, mistakes, and fixes for the 5 starters.

Synergy Weight Analyzer

Input your current relics and deck. We recalculate pick priority using tempo checkpoints, win thresholds, and conflict warnings—so you can draft with confidence.

Launch Analyzer
Tip: Start with your “core card” → we generate a priority list + redline conflicts.
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Decision Shortcuts

Decisions Covered: 160+

Characters
→
5 items
starter kits + core mistakes
Boss Cheat Sheets
→
24 items
run killers + tempo + desperation
Relics
→
120 items
what it changes in picks
Synergy Builds
→
15 items
priority list + conflicts
How we differ from wikis
Wikis store information. SpireGenius saves time: we highlight run killers, tempo checkpoints, and pick priorities—plus desperation-mode lines for when you’re one turn from dying.
Data Sync Complete: 2026.03.05 Early Access