Elden Ring Seamless Co-Op Mod Now Works with Shadow of the Erdtree, Adds Optional Invasions

Alessio Palumbo
Elden Ring

Today, LukeYui has updated his Elden Ring Seamless Co-Op mod to work with the newly released Shadow of the Erdtree expansion. Here's the changelog shared by the modder:

  • Compatibility with Elden Ring App Version 1.12, including Shadow of the Erdtree DLC
  • Completely rewritten code; some old bugs (e.g., enemies falling through the floor) do not occur anymore * Items gained in conversations are now given to all players
  • Event flags are properly synchronized now
  • Enemy scaling options have been added
  • Player death count is now a player banner option
  • Have the option to view the current session password in-game
  • ModEngine 2 compatibility
  • Matchmaking verification: only people with the same mods will be able to connect to each other
  • Added invasions (optional)

The modder also clarified there are currently some bugs still:

Related Story Black Myth: Wukong Outpaces FromSoftware’s Elden Ring to 30 Million Sales Nearly Two Years Ahead of Schedule

While not perfect, it has reached a state where it can be used to play Elden Ring and the DLC in coop. I'm aware of some bugs still present in it, and will continue working on it past the initial release - the next few days will be crucial so that I can work on fixing any problematic issues quickly should they arise.

The Seamless Co-Op mod was recently mentioned by none other than Elden Ring creator Hidetaka Miyazaki, who said that such a freeform cooperative system could well be implemented in future games made by FromSoftware.

For more on the Shadow of the Erdtree expansion (which already sold 5 million copies), read Wccftech's review:

With open-world fatigue setting in earlier this year due to the many open-world games released in 2024—like Final Fantasy VII Rebirth, Rise of the Ronin, and the PC versions of Horizon Forbidden West and Ghost of Tsushima—Shadow of the Erdtree's open-world design stands out as a testament to how the Elden Ring experience still surpasses anything else on the market.

Alessio Palumbo Photo

About the author: With over two decades of experience in gaming journalism, Alessio Palumbo has led the gaming vertical at Wccftech since August 2015. He started working at a young age for Italian websites like Everyeye.it, Gamestar.it, Nextgame.it, and Multiplayer.it before kickstarting the indie English-language publication Worlds Factory as its founder and Editor in Chief. In the last decade, he has coordinated the overall output of Wccftech's gaming section, managed PR relations, assigned reviews, produced daily news coverage, edited gaming content as needed, and delivered game reviews. Arguably, his trademark content is the long series of exclusive developer interviews that have been cited by Wikipedia and by the biggest news media and gaming publications. His passion for technology also makes him knowledgeable when it comes to gaming hardware and tech. His favorite genres include RPGs, MMORPGs, and action/adventure games.

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