Subnautica 2 Multiplayer
Subnautica 2 GuideWhat is officially confirmed for co-op right now.
Quick answer
Subnautica 2 supports 4-player co-op (host + up to 3 friends) per official store/platform messaging. In practice, matching patch versions remains the first troubleshooting step for session problems.
Verified against the source list below on June 8, 2026.
Status matrix
The current official messaging lists multiplayer support.
You plus up to 3 friends.
Multiplayer is optional, not required.
Then host from the in-game multiplayer menu.
Use this snapshot when the query intent is about current platform availability, not general release rumors.
Verification
Last verified: June 8, 2026
Where to Find It
- Steam feature list and description mention online co-op.
- Xbox Wire confirms co-op framing and cross-platform invite intent.
- In-game menus may evolve during Early Access updates.
How to Use It
- Keep all players on current version before sessions.
- Start with short progression sessions after patches to validate stability.
- If issues occur, retry after relog and version sync.
FAQ
How many players are supported?
Up to 4 total players (you plus up to 3 friends).
How do I start co-op quickly?
Use Host Multiplayer from the main menu, then invite friends; all players should update to the same patch first.
Is solo still supported?
Yes, solo remains a valid play path.
Will multiplayer behavior change?
Yes, Early Access features can be tuned over time.