Game Data

Chests

What each chest can give you, and how likely each item is: worked out from how the game fills a chest.

How a Chest Picks Its Items

  1. It shows a few items Most chests show 3 and you take one. Each chest's page says how many it shows.
  2. Each one rolls a rarity 0.25% Legendary, else 3.75% Epic, else the chest's own. Rarer chests roll less or not at all.
  3. Then an item is drawn From the chest's pool, of that rarity, weighted by each item's spawn weight, and never the same one twice.

Pool Chests

Each draws from one kind of item.

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Every chest here looks like this.
Damage Chest Shows 3 of 89 items Damage Pool Critical Chest Shows 3 of 4 items Critical Pool Elemental Chest Shows 3 of 39 items Elemental Pool Speed Chest Shows 3 of 19 items Speed Pool Luck Chest Shows 3 of 25 items Luck Pool Health Chest Shows 3 of 26 items Health Pool Economy Chest Shows 3 of 13 items Economy Pool Skill Chest Shows 3 of 43 items Skill Pool

Rarer Chests

Their items start at the chest's rarity.

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Greed Chest looks like this.
Greed Chest Shows 1 of 20 items Greed Pool Spiked Chest Shows 3 of 156 items Every Pool Epic Chest Shows 3 of 156 items Every Pool Legendary Chest Shows 4 of 66 items Every Pool

Special Chests

Each works its own way.

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Every chest here looks like this.
Upgrade Chest Shows 2 of the items you own What You Own Random Chest Shows 3 of 257 items Every Pool Relic Chest Shows 3 of 46 items Relics Only Regeneration Chest Shows 2 of 8 items Healing Pickups Key Chest Shows 1 of 3 items Keys Only Secret Chest Shows 1 of 101 items Every Pool

Luck: The Rarity Roll with Difficulty Modifiers

Each Item of a Common ChestCommonEpicLegendary
No Modifier 96%3.74%0.25%
Lucky 92%7.46%0.5%
Ultra Chaos 94%5.6%0.38%
Ultra Luck 0%87%13%
  • An Epic or Spiked chest only rolls for Legendary. Legendary, Greed and Secret chests do not roll.
  • The modifiers count everywhere but on shop islands, in the Key chest and in the Arcade and Holdout.
  • When a chest has nothing left of the rolled rarity, the item keeps the chest's own.

Worked out from how the game fills a chest, with the numbers read from its code after each update; not counted from play.

Read from the game files of Steam build 20903826, updated . The same data powers the save editor.