Nitrox currently works with the Steam and Epic Games Store versions of Subnautica. If you want a more visual guide, follow the Youtube video above. Instructions are available on the Nitrox site. From there you'll have to set up your own server that caters to multiplayer. Follow this link to download the mod, called Nitrox. With all mods enabled, you can start the game by pressing the 'Play' button on the game art in the top left of Vortex. A Nexus Mods user called Sunrunner37 created a popular multiplayer Subnautica mod. Click on it again to enable to mod (or use the button in the notification). Once the installation is complete, the button will change to say 'Disabled'. Once the file has downloaded into Vortex, click the 'Install' button in the notification or navigate to the 'Mods' page and click on the 'Never installed' button. If you'd rather check which file you're downloading, head to the 'Files' tab of the mod page and use the 'Download with manager' button on the file. The first, in the top right, will download the primary file for this mod immediately. On the mod page, there are two buttons that will download the mod directly to Vortex. To get started you'll need to visit the Nexus Mods page for Subnautica and choose a mod you'd like to download. Some mods such as Nitrox (a multiplayer mod for Subnautica) use an executable (EXE) or Windows Installer (MSI) files which cannot be installed via Vortex. These are graphical mods which need to be installed directly to the game folder and require the Reshade application to be installed. QModManager allows mods to directly interact with the games code. See also: Deployment Methods Installing Modsįor Subnautica, there are several different types of mods. This will require one final security prompt to save the change. To avoid this, you may want to go to Settings > Mods and change the deployment method to ' Hardlink deployment', then click 'Apply'. This is perfectly fine to use but will require you to accept a security prompt from Windows each time you deploy or change your mods. Accept this prompt to continue.ĭepending on your settings, Vortex may select ' Symlink Deployment (Run as Administrator)' as the default. The first time you activate support for the game, Windows may prompt you to allow Vortex to make changes to the files on your computer. If you can’t see Subnautica, you can scan for it or define it manually.

Use the “Manage” button on the game tile to add it to your managed games. If you don’t already see Subnautica under the “Managed” tab, check the “Discovered” section. To begin, open up Vortex and navigate to the games section. You will also need to be logged in to your Nexus Mods account in Vortex.Īt the time of writing, this guide only applies to Subnautica on Windows. Before we get started, this guide assumes that you have installed Subnautica and Vortex at their default locations.

Subnautica multiplayer mod