Scourge
Reliable Doom engine. Upgraded draws 2 cards.
1
13 Doom19 interactive tools · Slay the Spire 2 V0.109
Slay the Spire 2 Calculator Suite
Run the numbers while the decision is still yours. Check a Doom threshold, test a lethal line, compare a card reward, or price a co-op encounter without leaving the run. The suite covers combat math, route planning, deck checks, co-op, and progress tracking.
Combat mathRun planningDeck and co-opProgress and practice
Try A Tool Immediately
Quick Doom Check
Pick a high-pressure encounter, load a short Necrobinder line, and see whether the stack actually crosses the execute threshold. The preview uses the card order shown below, with End of Days resolving last.
Negative Pulse
Block + AOE Doom together. Efficient defensive and offensive hybrid.
0
0 DoomDeathbringer
Mass Doom + AOE Weak. Best multi-enemy room card.
0
0 DoomNo Escape
Exponential Doom scaling. At 50 Doom already stacked: applies 35 Doom. Snowballs fast.
1
15 DoomEnd of Days
Signature execute card. Applies Doom AND triggers execution in one play.
0
0 DoomStill Short
212 more Doom still needed
This line lands 28 total Doom against 240 current HP. Add one more source, lower the HP first, or open the full calculator for a deeper line.
Target HP240
New Doom28
Total Doom28
Energy Used2
Scourge ×1+13
No Escape ×1+15
The full interactive suite
19 tools for decisions a database cannot make for you
A card list tells you what exists. These tools help with the next click: play the card, take the reward, spend the campfire, or hand the relic to a teammate.
Combat math · 5 tools
Check the turn before you commit it
Damage, Doom, Stars, and energy lines where one missed breakpoint can end the run.
Doom CalculatorCompare current HP with Doom stacks and see when the execute becomes live.Check a threshold Combo DamageSequence attacks, Poison, Shivs, and Finisher without losing the order of play.Build a damage line Borrowed TimeBudget the energy burst and check whether the delayed payoff is worth the setup.Plan the combo Regent StarsTrack Stars, Forge choices, and blade output through a Regent turn.Count the Stars Doom GrowthTest repeated Doom sources and see how the stack develops across a longer fight.Run the simulation
Run planning · 6 tools
Spend the scarce resource in the right room
Compare campfires, events, opening rewards, enchantments, and daily score routes.
Rest Site OptimizerCompare Rest, Smith, and other campfire actions against the run in front of you.Choose a campfire action Event EVPut the available event outcomes side by side and price the risk you are taking.Compare event choices Neow Relic EvaluatorCompare opening relic choices and reward chains before the first route is locked in.Review the opening Enchantment CalculatorEstimate the value of an enchantment on the card that will actually carry it.Compare enchantments Ancient Blessing PlannerMatch a blessing pool to the character, deck, and route that can use it.Check the blessing pool Daily Score CalculatorEstimate score from floors, time, and badges before the daily run is over.Estimate the score
Deck and co-op · 5 tools
Find the weak link in the whole run
Drafting, deck structure, multiplayer HP, relic routing, and team support belong in one decision chain.
Deck Health AnalyzerCheck curve, cycle speed, role coverage, and which upgrade deserves priority.Inspect the deck Card Draft AdvisorJudge a reward against the deck you have, not the deck you hoped to build.Compare the reward Co-op HP CalculatorCompare solo and 2P–4P enemy HP, including room totals and rounding.Check co-op HP Co-op Synergy PlannerPlan support chains and decide which player should carry a shared relic.Plan the team Wax Relic TrackerFollow Toy Box melt order without rebuilding the sequence after every change.Track the wax relics
Progress and practice · 3 tools
Keep the long run easy to read
Three lightweight tools for unlock progress, run-end goals, and daily card knowledge.
Badge TrackerKeep run-end badge conditions visible while there is still time to meet them.Track badges Epoch TrackerFollow unlock waves and character progress from one clear checklist.Check Epoch progress SpiredleUse card and relic clues to solve a fresh Slay the Spire 2 puzzle each day.Play today’s puzzle
Original Content
Fresh Strategy Notes And Editorial
The site is not just tables and calculators. These articles explain the judgment, assumptions, and failure patterns behind the numbers.
Open Editorial HubTool Tutorial
How to Use the Event EV Calculator Without Faking Precision
An EV tool is useful when it sharpens a close decision. It becomes dangerous the moment you feed it fake confidence, bad route assumptions, or a run state you have not described honestly.
- The tool helps when the input state is concrete and the next decision is real.
- It lies when the player buries route risk, survivability, or hidden preferences under fake neutral numbers.
WalkthroughChart
Read articleEditorial MethodBuild NotesFeatured
How We Built the Slay the Spire 2 Early Access Data Station
A practical look at how STS2 Calculator turns early-access patch churn into usable tools, cleaner reference pages, and original editorial work instead of recycled database sludge.
- We design tools around decisions, not around showing off raw tables.
- Every reference page is tied back to a real route, combat, or deck-building question.
Field NoteChecklist
Read articleEditorial MethodVerification WorkflowFeatured
How We Verify STS2 Data After Every Patch
Our patch workflow for Slay the Spire 2: find what changed, isolate the assumptions those changes break, update the source data, and only then refresh the editorial layers and tools.
- We verify the rule first, then the data row, then every tool or guide derived from it.
- Patch notes are a lead, not a final source of truth.
Field NoteWalkthrough
Read articleAbout This Site
Slay the Spire 2 launched in Early Access on March 5, 2026 with new characters, mechanics, and depth not seen in the original. Standard wikis move slow — we fill the gap with interactive tools that give you exact numbers when you need them.
The Necrobinder's Doom system is one of the most distinct mechanics in STS2: a death countdown that rewards careful planning and precise Doom thresholds. Our calculator handles the math so you can focus on the strategy. Silent burst lines, poison lethals, Regent forge turns, Ancient blessing reads, route-specific enemy pools, campfire decisions, co-op tables, deck structure checks, and advanced Doom growth all now get the same treatment with dedicated planners.
Try the Rest Site Optimizer
Tool values and guidance last reviewed . Pages are rechecked after each game patch.
Maintenance Signals
Who Maintains This Page
Maintenance Signals
Who Maintains This Page
Core hub pages should not look anonymous. These signals show who curates the hub, when it was reviewed, and where the real source page lives when you need more than a summary.
Independent fan-made editors and data maintainers. This is not an official Slay the Spire 2 or Mega Crit property.
Final site operator and responsible editor. Final contact for corrections, rights notices, and maintenance triage via shwuhen@gmail.com.
Visible copy, links, and page-level signals were checked in the latest review pass.
If a patch moves the numbers, wording, or assumptions behind this page, the page gets revised, narrowed, or rechecked again.
Hub pages point you toward the maintained leaf pages instead of pretending one overview can carry every edge case.
Summaries help you navigate. The linked tool, guide, or database page remains the canonical page for the underlying calculation or note.
Editorial standardsRead the site-wide source boundary, patch workflow, correction path, and desk ownership rules.Patch workflowRead how the site rechecks data and editorial layers after a live update.Report stale dataUse the contact page or email the site operator when a number, rule, editorial note, or rights boundary looks wrong.