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Subnautica: Nitrox Server Hosting
Dive into Subnautica's ocean with friends — something the game never let you do — while the AI copilot keeps the sea running.
Can you get Subnautica 2 server hosting, or only Nitrox?
For now, only Nitrox. Real Subnautica 2 server hosting doesn't exist yet: Subnautica 2 (in Early Access since 14 May 2026) has built-in online co-op for you and up to three friends, run from one player's game, and Unknown Worlds hasn't released a dedicated server for it. The original Subnautica is the one you can host: it is single-player, and the free fan mod Nitrox adds multiplayer through a server that needs 4–8 GB of RAM, UDP port 11000, a server.cfg per world and the same Nitrox version on every PC. GameTeam runs that server around the clock for $0.49/GB a week, and the AI copilot edits the config and spots version breaks.
Run your Subnautica: Nitrox server by just asking.
Nitrox is a fan mod in active development, so most of running it is keeping versions straight and knowing which server.cfg line does what. Tell the copilot what the dive needs: it edits the file, matches the server to your Nitrox build and backs up the world before the story gets dangerous.
Same Build, Every Client
The copilot keeps the server's Nitrox version aligned so sessions connect.
Update Broke It? Told.
When Subnautica patches and Nitrox lags behind, the copilot says so instead of leaving you guessing.
One Server, Any Game
Switch the server when the dive is over.
Subnautica: Nitrox with friends
The underwater survival masterpiece, made co-op by Nitrox: explore an alien ocean, build bases beneath the waves and descend toward whatever is down there. Sharing the fear and the wonder with a friend changes the whole game.
Subnautica: Nitrox server RAM requirements
4-8 GB. Nitrox tracks world state that the base game never had to persist, so it is heavier than you might expect.
| Your server | Starting RAM | From (Budget, weekly) |
|---|---|---|
| 2–3 friends, early game, one small base | 4 GB | $1.96 / week |
| 4–5 players, several bases and vehicles | 6 GB | $2.94 / week |
| A long playthrough with big bases deep in the map | 8 GB | $3.92 / week |
Nitrox has to keep every player, vehicle and base piece in sync, which the single-player game never had to do, so memory climbs as the world fills up. The Nitrox team recommends 5 players per server even though it allows up to 100. Change RAM in one click from the panel; the world stays as it is. Player limit: Small co-op groups; Nitrox is built for playing through together, not for a public server.
How to set up a Subnautica: Nitrox server on GameTeam
Pick RAM and a location
4 GB is a good start for two or three divers. Pick the location nearest most of the group; we have 25+ across Europe, the Americas and Asia-Pacific.
Set the world up
Tell the copilot the game mode, password and rules you want, or edit server.cfg in the file manager. Have a Nitrox world already? Upload its save folder and keep going.
Join from the Nitrox Launcher
Every player installs the same Nitrox version from nitrox.rux.gg, opens the launcher, picks Multiplayer, then Add server IP with the address and port from the panel, and joins.
Good to know before you start
Nitrox is installed on the server and on every client, and all of them must run the same Nitrox build for a session to connect.
The most common problem
A Subnautica update usually breaks Nitrox until a matching build is released, which presents as being unable to connect.
Subnautica: Nitrox server settings explained
Each Nitrox world keeps its own server.cfg inside its save folder; the launcher's server settings screen writes the same file. Stop the server before editing it by hand, then start it again to apply the change. The keys worth knowing:
| Setting | What it does |
|---|---|
ServerPort | UDP port the server listens on. Default 11000; players add :port to the address if it changes. |
ServerPassword | Join password. Empty means anyone with the address can join. |
AdminPassword | Password for /login. Nitrox generates a random 12-character one on first start. |
GameMode | SURVIVAL (default), FREEDOM, HARDCORE or CREATIVE, the same modes as the single-player game. |
Seed | World seed. Leave it blank for a random spawn position. |
KeepInventoryOnDeath | When true, players keep their items after dying. Default false. |
PvPEnabled | Player-versus-player damage. On by default. |
MaxConnections | Player cap, default 100. The Nitrox team recommends around 5. |
SaveInterval | Autosave interval in milliseconds. Default 120000, every two minutes. |
MaxBackups / DisableAutoBackup | How many automatic backups to keep (default 10), or turn them off. |
DefaultPlayerPerm | Permission level new players get: PLAYER by default, or MODERATOR / ADMIN. |
InitialSyncTimeout | How long a joining player may take to load the world, in milliseconds (default 120000). Raise it if big worlds time out on join. |
CreateFullEntityCache | Caches the whole map on the next start: a slower boot, then smoother play in new areas. |
SafeBuilding | Rejects building actions that arrive out of sync. On by default. |
Subnautica: Nitrox server commands
Run these in the server console, or in game chat with a / in front. In game, log in first with /login and the AdminPassword. The copilot can run console commands for you from the panel.
| Command | What it does |
|---|---|
/login <password> | Gives you admin rights in game (in-game only). |
list | Shows who is online out of the player cap. |
save | Saves the world now. Moderator. |
backup | Makes a backup of the save. Admin. |
kick <name> [reason] | Disconnects a player. Moderator. |
broadcast <message> | Messages everyone; say works too. Moderator. |
time day | night | Jumps to day or night. Moderator. |
teleport <x> <y> <z> | Teleports you to coordinates (alias tp, in game only). warp <name> moves you to a player. |
promote <name> <level> | Sets a player's permission level. op <name> makes them admin. |
pvp on | off | Toggles player damage. Admin. |
keepinventory true | false | Toggles keeping items on death. Admin. |
changeserverpassword [password] | Changes the join password, or clears it with no argument. Admin. |
aurora countdown | restore | explode | Controls the Aurora story event (in game only). Admin. |
sunbeam storystart | countdown | gunaim | Starts Sunbeam story events (in game only). Admin. |
stop | Saves and stops the server. Admin. |
Can I add mods to a Subnautica: Nitrox server?
Nitrox is itself a mod, and every player must run the same Nitrox version as the server. Additional mods are not officially supported alongside it.
Nitrox works with the Steam, Epic Games and Microsoft Store versions of Subnautica (the Store version needs extra setup, covered on the Nitrox Discord), and the launcher runs on Windows and Linux; Mac is not supported. Every player still needs their own copy of the game.
Subnautica: Nitrox server ports
On GameTeam there is nothing to forward and no UPnP to fight with: the panel shows your server's address and port, which may differ from the default. Players type it in the launcher under Add server IP.
Pay per GB of RAM. Never per slot.
You pay for memory, not seats, and billing can be weekly, so you are never locked into a month the group might not play. Change RAM in one click, or switch the same server to another game. The AI copilot is included on every plan.
- ✓ AI copilot included on every plan
- ✓ Unlimited player slots — we never charge per slot
- ✓ Ryzen 9 7950X · NVMe storage
- ✓ DDoS protection included
- ✓ Switch to another game anytime
- ✓ 25 GB NVMe storage · 160 Gbps DDoS protection
- ✓ AI copilot included on every plan
- ✓ Unlimited player slots — we never charge per slot
- ✓ Ryzen 9 7950X · Unlimited NVMe storage
- ✓ 480 Gbps DDoS protection
- ✓ Switch to another game anytime
- ✓ Dedicated threads
- ✓ Automatic backups
- ✓ Priority support
Hardware & network
Locations
What server owners say
"Honestly didn't expect much from an 'AI manager', but it's how I run my server now. I'll type something like 'why did the server crash last night' and it actually reads the logs and tells me."
Verified review
"I'd been on two other hosts before this. What sold me was the AI manager catching a memory leak in one of my mods and naming the exact one — something I'd been chasing for weeks."
Verified review
"I'm not very technical and setting up servers always stressed me out. Now I just ask the assistant to fix a config, and it either walks me through it or does it for me."
Verified review
Subnautica: Nitrox server hosting FAQ
Is there Subnautica 2 server hosting?
Not yet, from anyone. Subnautica 2 has its own online co-op for up to four players, but the session runs on one player's game and there is no dedicated server download to host. Players have asked Unknown Worlds for official dedicated servers on the Subnautica 2 feedback board. If Unknown Worlds releases server software, that changes; until then, the Subnautica you can host on a server is the original game with Nitrox.
Why can't I join my friends in Subnautica 2 online?
In Subnautica 2 co-op, the world lives on the host's game, so the host has to be in the game for anyone to join, and a lobby holds four players at most. That is the game's own design, and no host, us included, can run it on a server today.
How do you host a game in Subnautica?
The original Subnautica has no multiplayer of its own. Install Nitrox from nitrox.rux.gg, open the Nitrox Launcher, choose Server and start one, then share your IP and open UDP port 11000. If you want the world up when you are offline, host it on a server instead: on GameTeam you deploy, share the address from the panel and play.
Why can't I connect to a remote Nitrox server?
"Unable to contact the remote server" means nothing answered at that address and port: the server isn't running, the IP or port is wrong, UDP 11000 is blocked, or a Subnautica patch broke Nitrox until a new build comes out. A version gap shows its own message instead. Our Nitrox troubleshooting checklist walks through each cause.
How many players can join a Nitrox server?
Nitrox allows up to 100 (MaxConnections), but its own team recommends 5. It is made for a group playing the story together. GameTeam never charges per slot.
Do all players need Nitrox and their own copy of Subnautica?
Yes. Everyone needs Subnautica on Steam, Epic or the Microsoft Store, plus the same Nitrox version as the server. Nitrox itself is free and open source.
Can I move my Nitrox world to GameTeam?
Yes. On your PC each world is a folder under %AppData%\Nitrox\saves\, with its server.cfg inside. Stop your local server, upload that folder in the file manager and start the GameTeam server on it.
Where do Subnautica players find Nitrox servers to join?
Public Nitrox servers aren't run by the Nitrox team and there is no built-in list, so players swap addresses on the official Nitrox Discord and on Reddit. With your own server you share one address with your friends and that's it.
How much does Subnautica Nitrox server hosting cost?
You pay per GB of RAM: $0.49/GB a week on Budget, or $1.99/GB billed monthly. A 4 GB server for a small group is $1.96 a week and 8 GB is $3.92 a week, with every slot included, the AI copilot on board and 72 hours money-back.
Run it yourself — or let the copilot.
Same server, any game.
Your Subnautica ocean, shared and always on.
Deploy a Nitrox server, tell the copilot how the world should play, and send your crew one address.
Deploy your Subnautica: Nitrox server