Scourge
Reliable Doom engine. Upgraded draws 2 cards.
1
13 DoomSlay the Spire 2 — Early Access - V0.101.0
STS2 Calculator Suite
Interactive tools for Slay the Spire 2. Calculate Doom execution thresholds, optimize your Necrobinder runs, compare Ancient blessing lines, build cleaner co-op teams, audit deck health, browse clean card, relic, and enemy data, and plan every combat decision before it costs you. Start with the live Doom check right below, then open the full suite when the line gets complicated.
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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 Used3
Scourge ×1+13
No Escape ×1+15
Full Tools and Database
Start with the homepage quick check, then move into the full calculators, planners, simulators, and searchable reference pages when you need the deeper line.
Doom Execution Calculator
Figure out exactly how much Doom the Necrobinder needs to execute any enemy. Includes Melancholy amplification, relic synergies, and a full enemy HP reference table.
Open Calculator →Enchantment Value Evaluator
Project turn-by-turn gain versus HP pressure. Check cumulative risk windows for Corrupted, Instinct, Sharp, and other enchantments.
Open Calculator →Ancient Blessing Evaluator
Compare Ancient blessing lanes by Act, route, character, and deck focus so the pick actually matches the shell you are building.
Open Evaluator →Event EV Calculator
Search every event, load your current HP, gold, removals, upgrades, and inventory pressure, then rank the cleanest choice for the stage you are actually facing.
Open Calculator →Combo Damage Calculator
Map the exact order of attacks, poison setup, Shiv generation, and Finisher scaling before you commit the turn.
Open Calculator →Regent Stars Calculator
Plan Stars, forge bursts, and Sovereign Blade finishers in one line. See when a setup turn still leaves enough Energy to swing.
Open Calculator →Rest Site Optimizer
Weigh Rest versus Smith with live HP, next-room pressure, and the exact upgrade you would click at the campfire.
Open Calculator →Wax Relic Tracker
Track current Toy Box relic order, see which Wax relic melts next, and keep the remaining fight count clean while the run is still moving.
Open Tracker →Co-op HP Scaling Calculator
Pick any enemy and compare solo, 2P, 3P, and 4P HP with per-body rounding, room multipliers, and full encounter totals still attached.
Open Calculator →Co-op Synergy Planner
Pick 2 to 4 characters, lock in core cards, and check the shared debuff windows, support chains, and relic handoffs the team actually has.
Open Planner →Deck Health Analyzer
Check card type ratio, cost curve, cycle speed, role coverage, and the upgrades that matter before the deck turns into a swamp.
Open Analyzer →Card Draft Advisor
Load the shell you are actually carrying, enter the three offered cards, and see which pick patches the real hole instead of chasing the prettiest reward.
Open Advisor →Doom Growth Simulator
Sample No Escape draw orders with Haunt and Soul density, then compare average and high-roll execute timing against elite and boss HP.
Open Simulator →Card Database
Search every card by pool, cost, type, rarity, and Epoch unlock. Open any entry to see a stacked base-versus-upgraded comparison.
Browse Cards →Powers Database
Track every current buff and debuff with stack rules, trigger timing, linked mechanics, and quick access to Doom, Block, and orb packages.
Browse Powers →Mechanics Dictionary
Read the exact meaning of every current card keyword, check where it is printed on the card, and open real examples instead of guessing from memory.
Open Dictionary →Character Guides
Open full Ironclad, Silent, Defect, Necrobinder, and Regent guides with core cards, relic packages, act plans, FAQ, and links back into the right tools.
Open Guides →Potions Database & Timing Calculator
Filter every live potion by effect, pool, rarity, and unlock wave, then use the timing calculator to decide whether each bottle should be spent now or saved.
Browse Potions →Achievement Guide & Tracker
Track the full achievement board, filter character wins and mastery feats, and keep a local checklist without leaving the browser.
Open Tracker →Epoch Unlock Tracker
Track the current Epoch board, mark what you have already opened, and filter the remaining story lanes without leaving the browser.
Open Tracker →Ascension Guide & Difficulty Planner
See every live Ascension modifier, the real breakpoints at A1, A6, A8, and A10, and the reward or combat pressure each step adds.
Open Guide →Relic Database
Filter relics by pool, rarity, category, and trade profile. Open each entry for effect text, co-op notes, and related card or relic links.
Browse Relics →Boss & Elite HP Lookup
Read elite and boss rooms by full encounter total, member HP, Ascension 8 breakpoint, and 2P to 4P scaling before the route asks the question for you.
Open Lookup →Enemy HP Quick Reference
Filter enemy pools by Act variant and room tier, then compare HP bands, danger profile, and move titles without leaving the route in your head.
Browse Enemies →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
Data and calculators last reviewed . Pages are rechecked after each game patch.
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 [email protected].
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.