Tainted Isaac is an unlockable character in The Binding of Isaac, added in the Repentance DLC.

No starting items.

Can hold only 8 passive items at a time. They are displayed in the top-left corner of the screen, with one of them highlighted by a white square.

Picking up the 9th item will replace the highlighted item and drop it on the ground.

The currently highlighted item can be cycled by using the drop button.

All new item pedestals cycle between 2 items for Isaac to choose from. This does not apply to pedestals that are dropped.

Items with the quest tag, as well as Birthright, don't take up inventory space.

Dropping items removes their passive effects, however any health or pickups gained from them will be kept.

This page shows information as of the latest Repentance release.
To see latest up-to date information about this character for the new Repentance+ (Online Co-op) DLC, check this page instead.

Open up the hidden Red Door in the Home level as Isaac.

The following special synergies and interactions for Tainted Isaac have been documented.

* Note that not all possible synergies and interactions are listed here.

• Check out the character description on the external Isaac Wiki.