After nearly a decade of community mods papering over the gap, Unknown Worlds is bringing native multiplayer to the Subnautica franchise. Subnautica 2 enters Early Access on 14 May 2026 at $29.99 USD, with day-one Xbox Game Pass and PC Game Pass.
Here's a concise rundown of what's confirmed about multiplayer, and where dedicated server hosting fits in.
Up to four players, fully integrated
Subnautica 2 supports solo play and up to four-player co-op out of the box. Multiplayer was the community's most-requested feature for years, and Unknown Worlds has built it directly into the game rather than bolting it on. Progression, base-building, vehicles, and story beats are designed to work in a shared world.
Crossplay is confirmed between PC (Steam, Epic Games Store, Microsoft Store) and Xbox Series X|S from day one, handled through Epic Online Services. Mixed-platform groups can play together without extra setup.
How multiplayer actually works
There's a lot of confused information floating around about Subnautica 2's networking, so it's worth being clear.
Subnautica 2's multiplayer at Early Access launch is peer-to-peer. One player hosts the world from their own machine, the others connect to that session, and the world save lives on the host's PC or Xbox. It's the same basic model as Valheim's default mode, Grounded, or Sons of the Forest.
That has implications for any group planning to play regularly together:
- The host needs to be online for anyone to play.
- Performance for everyone depends on the host's connection and hardware.
- If the host's save corrupts or their machine dies, the world goes with it.
- Latency is dictated by distance to the host, which matters when your group is spread across countries.
Peer-to-peer is fine for casual sessions with friends in the same time zone. It gets uncomfortable fast as soon as schedules diverge or someone has a slightly better internet plan than the rest.
Dedicated server hosting: where things stand
Unknown Worlds has not announced an official dedicated server tool for Subnautica 2 at Early Access launch. The Steam store page describes "online co-operative multiplayer with up to three friends" and does not list a separate dedicated server product.
Earlier versions of this article confidently claimed dedicated server support was coming. That was wrong, and we've cleaned it up. We'd rather give you the honest version than the marketing one.
Here's what we are actively doing on the LOW.MS side:
- Tracking the EA release on 14 May. As soon as the game ships, we'll inspect the build for any dedicated server binary and check for changes in Unknown Worlds' messaging.
- Following the modding scene. The original Subnautica eventually got Nitrox, a community-maintained multiplayer mod. If Subnautica 2's tooling makes a self-hosted option viable through similar means, we'll evaluate it.
- Publishing a real hosting guide if and when there's something to host. Until then, this page is the honest version: peer-to-peer at launch, no confirmed dedicated server support, watching the situation closely.
If you want a heads-up the moment things change, bookmark our Subnautica 2 game page. When we have a server product to offer, that's where it'll appear first.
The case for private hosting, when it eventually exists
If and when dedicated server tooling lands for Subnautica 2, here's what private hosting is genuinely useful for:
- A persistent shared world that keeps progressing whether or not the original host is online.
- Consistent latency for every player, anchored to a server location rather than a host's home connection.
- Automated backups so a corrupted save or rogue leviathan encounter doesn't wipe weeks of base-building.
- Admin control over settings, whitelists, and world state.
For now, those benefits sit in the "future" column for Subnautica 2. We'll update this page when that changes.