How to Get Subnautica Multiplayer to Work
Subnautica doesn't officially support multiplayer, but you can try the Nitrox mod. It’s not perfect, but worth a shot for co-op adventures!
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You need to use a mod called 'Nitrox' to play Subnautica in multiplayer. Grab it from their official site and follow the installation instructions!
Forget it. Subnautica was designed as a single-player experience, and official multiplayer support just isn't there.
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