Guides
5Short guides to how Slay the Spire 2 works.
The Merchant and shop prices
Prices, the sale, card removalAscension 10 and Double Boss
The top of the ladderUnknown room (?) odds
What a ? room can becomeRest site options
Nine options at the fireCard reward odds
How to read these guides
Every price, chance and count is the game's own, from v0.107.1. A percentage is what the game rolls against, not what players have observed.
Reading notes
What each guide covers
- The Merchant and shop prices: Card, relic and potion prices by rarity, the price wobble, the half-price sale, card removal growth, Membership Card and The Courier, and the fake merchant.
- Ascension 10 and Double Boss: What the top Ascension does, how the second boss is chosen, every level from 1 to 10 in order, and why there is no Ascension 20.
- Unknown room (?) odds: What a question-mark room turns into: base chances, growth after every miss, resets each act, first-run scripting and the relics that change the list.
- Rest site options: Rest, Smith, Mend, Dig, Train, Kindle, Cook, Hatch and Clone: what each does, what unlocks it, and the relics that change the heal.
- Card reward odds: How reward packs are rolled: rarity odds, the rare pity offset, upgrade chance by act, potion drops with pity, and elite and boss differences.
Reading the numbers
- Both numbers when Ascension matters. Where Ascension changes a value, the guide gives both and names the level. Each level's own text is on the Ascension page.
- Same seed, same run. The same seed gives the same shop and the same ? rooms, as long as you make the same choices.
- Ranges and steps. A price range is the list price after the shop's random wobble. An odds chart is one rule worked out step by step: read it as "after this many misses".
Item pages hold the item text, these pages the rules around them. The map's own hover boxes: Shop, Rest Site, Unknown and Card Reward.

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