Cards
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About this
What it is Pinned, rehosted Spirebird community card stats and generated example runs for Slay the Spire 2.
How it works Card ratings come from a pinned Spirebird export, rehosted in SQLite. The browser receives only the slice you’re looking at. Alongside it is a synthetic run generator that can produce a million fake runs. It exists because I wanted to see how fast a million runs could go.
Why I built it To see whether a large card dataset could feel immediate and useful without downloading the whole thing.
About Elo
Elo is a relative reward-choice rating derived from pick-versus-pass comparisons in this dataset. It is not a universal card power score, and sample size still matters.
Runs
Explore generated example runs.
About the generator
The stupid part Fake runs still have to balance. I reverse-engineered 229 of my own .run files, then wrote down enough constraints to stop the generator from casually putting elites on impossible floors, handing out cards from the wrong character, spending gold that doesn’t exist, or ending with a deck its own history couldn’t have produced.
Under the hood Each run is built in order: act layouts, Ancient choices, rooms and rewards, shops and rest sites, cards, relics and potions, HP and gold, then a terminal snapshot. Starting inventory plus every mutation must reconcile with the final inventory; every resource delta must reconcile with the next total; and the same seed must reproduce the same database.
Why do this? The machinery can scale to a million fake runs. I wanted to know whether SQLite could turn that mountain of run-level facts into fast, browsable statistics.
The honest caveat This is a constrained benchmark model, not a Slay the Spire 2 simulator. Some encounters, events, relic effects, and decisions are simplified. The visible card ratings are pinned to Spirebird. The generator's own output is fake data about fake runs, meant to exercise the aggregation pipeline.
| Run | Date | Character | Ascension | Result | Floors | Win estimate | Version |
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