how to · Multiplayer
How to Play Co-op in Subnautica 2
Use the current Early Access multiplayer flow to host or join a session, ensure everyone runs the same 1.2 build, and test voice and revive features near the starting area before travelling far.
Answer first
Quick Answer
Use the current Early Access multiplayer flow to host or join a session, ensure everyone runs the same 1.2 build, and test voice and revive features near the starting area before travelling far.
On This Page
Match versions before joining
Update all clients, let one player host, join through the in-game multiplayer interface, and resolve version or connection errors before progressing.
Verification notes
This answer is scoped to Early Access 1.2 Buddy System and was checked on 2026-08-25. The cited official source defines the live feature boundary; the secondary source is used only where current hands-on routing is needed.
Next steps
For the next verified route, continue to the linked subnautica 2 guide.
Continue with the related guides shown on this page. They stay within the Subnautica 2 cluster and use the same verified version boundary.
Requirements
- Current game version
- The prerequisite stated in the Quick Answer
Steps
- 1
Match versions before joining
Update all clients, let one player host, join through the in-game multiplayer interface, and resolve version or connection errors before progressing.
- 2
Confirm the result
Check the live interface or quest tracker before spending resources or moving on.
Common Mistakes
- Following pre-release or previous-game advice.
- Skipping the version or prerequisite check.
How this answer was checked
Sources & Verification
- Unknown Worlds Buddy System Updatepatch notes
- Subnautica 2 Steam pageofficial
- PC Gamer Early Access 1.2 coveragereliable secondary
More verified answers
Related Guides
How Proximity Chat Works in Subnautica 2
Proximity chat is live in Early Access 1.2 and makes teammate volume depend on distance. Enable voice input, test beside a teammate, then move apart to confirm the falloff is functioning.
Verified guideHow to Revive Players in Subnautica 2
The Buddy System update allows a nearby teammate to revive a downed player. Stay together in hazardous areas so another player can reach the revive interaction before the situation deteriorates.
Verified guideHow to Use Tracking Tags in Subnautica 2
Tracking tags act as short-range beacons in Early Access 1.2. Place one on an object or inside a container you need to relocate, then use its signal while you remain within the supported range.
Verified guide