On top of its base difficulty and the Everdark Sovereign fights, Elden Ring Nightreign will become an even tougher game next month with the introduction of a new hard mode.
Available from 11th September 2025 in a free update, Deep of Night will be "a high-difficulty challenge mode designed for seasoned players who have navigated through the Night many times". The enemies you encounter will be stronger and you can't choose which final Nightlord boss you'll face.
It sounds like the mode will have you descending through a series of Depths, with each one getting harder as you go down. Depth 3 appears to be the main conclusion of the Deep of Night mode, but there'll be a Depth 4 and a Depth 5 featuring "endless battles".
Along the way, you'll find new items called Depth Relics and new weapons packing new effects, but also negative ones.