Challenge: #1 Pitch Black
Description: The Head Trauma Challenge requires you to go to the Depths II and defeat Mom. Curse of Darkness and Curse of the Unknown are present for every floor of this Challenge. Item rooms are available for this challenge, but shops are not.
Unlock: This Challenge is unlocked by default.
Starting Items: There are no starting items for this Challenge.
Strategy: Curse of the Darkness will make every floor darker, but with some brightness adjustment settings it won’t be a problem whatsoever. Curse of the Unknown hides your current health from you. The only time this gets to be problematic is when you are contemplating a Devil Deal. If you can keep good track of your health, you will be alright, otherwise you should focus on Devil Deal Items that give health at the cost of it. Like the Pact, Sin Robes or the Dead Cat. Other than that it should be a pretty straight forward run.
Completion: Completion of this challenge unlocks Rune of Hagalaz.