Where the data comes from

Everything on this site is read from PokéIsaac's own game files, version 1.0.10 (build 1.0.10-dee67a0), checked on October 22, 2026.

PokéIsaac runs in the browser, so its item table, boss table, floors, Pokémon stats, type chart and the in-game Wiki ship with the page. We load that build, read the tables and turn them into these pages. Item effects and names are the game's own English and Spanish text. Where we add something (damage per second, which types do best on a floor), it is computed straight from those numbers:

• Damage per second = a Pokémon's base damage × shots per second (60 ÷ its fire delay in frames).
• Best attacking type on a floor = the game's own type multiplier against each enemy type, weighted by how often that enemy spawns there (the same number the game shows on the floor card).

When SrBatai ships an update we read the new build and refresh the numbers. If something here doesn't match what you see in the game, tell us with the item or boss name.

Item icons and screenshots come from the game; Pokémon sprites are from PokeAPI. The game itself is at pokeisaac.com: free, no download, solo or online co-op for up to 4.