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Subnautica Nitrox

An open-source, multiplayer modification for the game Subnautica.

Master License: GPL v3


What is the current status?

The mod is in the very early stages of development; however, a solid foundation has been laid for the community to iterate on. The following milestones have been completed:

  • Client / Server Communication
  • Player movement
  • Picking up / Dropping item syncing
  • Long-range world syncing
  • Base building
  • Furniture building
  • Most furniture interactions (containers / medkit fabricators / chargers / etc)
  • Power management
  • Seamoth & Exosuit Syncing
  • Cyclops syncing
  • Chat system
  • New HUD for remote players
  • Basic player animations
  • Integration with Harmony
  • Friendly Launcher
  • Published on NexusMods (on or on the Nitrox website

How can I play this mod?

Please do keep in mind that this mod is still in progressional development.

We finally have reached a stage, where we feel comfortable enough to give the public easy access to the mod by providing a launcher to use on each reoccurring update.

If you want to follow the development progress exactly on each pull request. Refer to the wiki tab to set up a development environment where pushed updates will be synchronized automatically.

You can find the mod here on NexusMods or the Nitrox website.


Due to the huge influx of new players for Subnautica the Issue tracker turned into a forum instead of its actual purpose. Please join the Nitrox Discord to discuss any and all issues you have with Nitrox. From there we'll pick up on new issues to track.

Keep in mind that your issue may already exist. Please refer to the existing issues on Discord if you want to add new information about existing issues. You can peruse the existing issues here on Github.

How can I contribute?

Simply submit a pull request. Full documentation can be found on the wiki tab. Feel free to join us in the Nitrox Discord channel. Make sure to check out or contributing guidelines found here.

How can I donate?

We do not accept donations to the mod. Those wishing to give money can do so here:

Why the name 'Nitrox'?

Nitrox is an alternative air mixture, used by scuba divers, to achieve longer bottom times. As a mod, it will provide a new dimension of gameplay to extend your enjoyment.


An open-source, multiplayer modification for the game Subnautica.




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