Steel Soul Mode is a game mode in Hollow Knight that the player unlocks after completing the game once.

In Steel Soul Mode, there are three main changes to gameplay:

As death is permanent, this means that the Fragile Charms sold by Leg Eater become significantly more useful, as their main penalty (breaking upon death) is nullified.

Trying to enter a failed Steel Soul run will result in asking if the player would like to clear the save slot.

Steel Soul Completed

Screen for completing Steel Soul mode without dying. The off-centered text is likely a visual error.

Steel Soul Game Over

The Game Over screen, only visible if you die in Steel Soul Mode.