The Binding of Isaac Wiki

A 40-page artbook featuring Edmund McMillen's design sketches of The Binding of Isaac was included in the Unholy Edition of the game. The artwork includes various Bosses, Items, Monsters, etc.

Artbook Pages

Miscellaneous Concept Arts

On September 28, 2016, Edmund McMillen shared more never-before-seen concept arts on Twitter to celebrate the game's 5th anniversary. Edmund's concept drawings that were never found in the artbook in the first place contain early ideas for the original game as well as some content that will later be used for Rebirth.

Games and DLCs
The Binding of IsaacWrath of the LambEternal EditionDemo
Other Purchases
Unholy EditionOriginal SoundtrackArtbookSteam Trading CardsMerchandise
Cut Content