Elden Ring Nightreign[a] is an upcoming 2025 action role-playing game by FromSoftware and published by Bandai Namco Entertainment.

While the game has a single-player mode, it is intended to be played cooperatively by teams of three players who collaborate over three in-game days to prepare for the final boss.

[1] Similar to battle royale games, Nightreign features a shrinking gameplay area which resets after players defeat the minor boss at the end of each in-game day.

[1] Bandai Namco Entertainment registered the trademark for "Nightreign" on 24 October 2024,[3] with it being revealed at The Game Awards 2024 in December.

Fantasy author George R. R. Martin, who wrote the backstory of Elden Ring, is not involved with Nightreign.