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June 11, 2025

[Update] Elden Ring: Nightreign Seamless Co-op (4+ players)

Hi everyone,

I've been taking a short break to work on a side-project -- Elden Ring Nightreign Seamless Co-op.

As I'm aware that FromSoftware will implement official 2-player game session support, I've shifted the mod more toward being a purely multiphantom (4+ player) mod. Likely stopping at 12 players, and then allowing other modders to create their own game-modes which could make use of the player cap increase.

I have uploaded a short video showing a 4-player session I played and discussing some of the issues pre-release.

Dark Souls II seamless co-op is still being worked on. It uses an entirely different engine to Dark Souls Dark Souls III, Sekiro, and Elden Ring - therefore it takes a lot longer to develop. Thank you for your patience.

Take care,

Yui

Elden Ring Nightreign Seamless Co-op: 4 (+) player demonstration (YouTube)

Comments (8)

V
Vladislav * · August 28, 2026

Hi! After the latest Elden Ring update, Seamless Co-op 1.9.9 stopped working for me. I’m getting this error: “ No such pattern found ” “ The mod may not be compatible with the installed game version. ” Are you still supporting Seamless Co-op, and are you planning to release an update for the new Elden Ring version? Thanks for your work on the mod!

Y
Yui · August 28, 2026

I've already said a few times. I will update it but I'm not home rn

S
Schrödinger's Wallet · June 25, 2025

Working through Dark Souls Remaster with a friend and we're having a blast. Phenomenal work!

f
fernando romo · June 23, 2025

Im hoping that you could still support 2 player co op with optional scaling, because nightreign is just too much for us and we're really not having much fun with it.

M
MoorsheadFalling · June 11, 2025

Great work Yui! Looking forward to trying this out - just out of curiosity, I noticed unlike ERSC there's no Seamless Coop password for Nightreign - is it possible to use the game's inbuilt password/invite system to limit who can join your session?

K
King Of Strangeness · June 11, 2025

you mention different engines for ds2. does that also include games like bloodborne or demons souls? sorry if its a really stupid question lol

F
Fentiman · June 12, 2025

Not a stupid question. Basically, every souls and souls-adjacent title use the same engine, though with massive upgrades with each title. This includes, Sekiro, Bloodborne, etc. Dark Souls 2 is the only one that used a completely different engine altogether.

J
James Hounshell · June 11, 2025

Awesome work!