Subnautica 2: convert a save between solo and multiplayer
Keep your Subnautica 2 world when changing between solo and co-op. Follow the official conversion path in either direction.
Subnautica 2
Dive into an alien ocean, alone or with friends, and keep track of Early Access systems as they evolve.
- Platforms
- PC · Xbox Series X|S
- Players
- 1–4 players
- Developer
- Unknown Worlds Entertainment
- Early Access release
Start with your world, not a new save: convert between solo and co-op, understand why Experimental saves disappear from the default branch, and use the Buddy System's sharing tools. Version boundaries matter here.
Inside Subnautica 2
3 guides and updates
Co-op & servers
Saves & setup
Subnautica 2 Experimental saves missing? Check the branch
Subnautica 2 keeps Default and Experimental saves separately. Find out where your world went and why friends on another branch cannot join.
Version changes
Subnautica 2 save codes and Buddy System quality-of-life changes
Understand the Buddy System save-code input, repair-tool unlock change and scanner feedback without mixing them up with cross-branch transfers.
Game facts checked November 7, 2026. Primary source · Steam listing. Artwork: KRAFTON.