A seamless co-op mod for Dark Souls 2 is due to release on Tuesday, September 22, PCGamesN reported. It comes from Yui, the modder who previously built seamless co-op mods for Elden Ring, Elden Ring Nightreign, Dark Souls, Dark Souls 3 and Armored Core 6: Fires of Rubicon.
Seamless co-op mods let players join a friend's world and complete the whole game together, from the opening area through to the final bosses. According to the report, the Dark Souls 2 version supports sessions of up to six players, keeps NPC dialogue in sync for everyone and removes area restrictions. It also adds proximity chat during PvP.
Dying does not end a session, and major boss fights are open to every player in it. A boss defeated in co-op also counts as defeated in each participant's own game, and all obtainable items carry over.
Because playing in a group makes the game easier, Yui said the balance has been retuned with multiplayer scaling in mind and can be fully customized. The mod also offers an optional, punishing mechanic aimed at more experienced players.
The mod works only with Dark Souls 2: Scholar of the First Sin. Yui explained that the original release of Dark Souls 2 is a 32-bit game while Scholar of the First Sin is 64-bit, the same situation as the modder's earlier Dark Souls mod, which also required the newer edition.
Yui began work on the Dark Souls 2 project in April 2025, roughly a year and a half before release. The mod will be available to download from Nexus Mods, and Yui also accepts support through Patreon.
