Wondering about co-op in Subnautica 2? Unknown Worlds says Subnautica 2 was built “from the ground up” for multiplayer, though the studio stresses that the full game can be played entirely solo.
For more on the game’s core features, see our early access buyer’s guide.
Subnautica 2: How Players Are Changing the Game
The Subnautica series has cemented its place in the gaming industry with the hotly anticipated Subnautica 2 coming to early access this month.
Does Subnautica 2 Have Multiplayer?
Yes, Subnautica 2 has four-player multiplayer and can be played from start to finish in co-op. Everything you can do solo you can also do with friends.
Can You Play Subnautica 2 Solo?
Yes, you can play the entirety of Subnautica 2 solo, and there are no exclusive multiplayer features or segments.
How Co-Op Works in Subnautica 2
Drop-In & Drop-Out
Subnautica 2 features a drop-in, drop-out co-op system, allowing players to join and leave multiplayer sessions freely.
Shared Progress & Inventory
If you want to bring friends into a solo game, you can convert it into a multiplayer world where everyone that joins can continue progressing the save. Alternatively, you can start a fresh multiplayer world if you want to play co-op from the very beginning, and players can continue progressing those worlds even when joining existing saves.
An interview from Eurogamer has also confirmed that players will have shared inventories when the game releases in early access. The developers are planning to add non-shared inventories, though, and that is a top post-launch priority.
Does Subnautica 2 Support Crossplay?
Yes, Subnautica 2 supports cross-play between Xbox and PC, allowing players to invite their friends using their normal platform friends lists.
How Multiplayer Changes the Experience
For many players, the appeal of Subnautica is a feeling of isolation, and the developers acknowledge the importance of maintaining that feeling in solo play. However, the developers also suggest that there are some new forms of horror to be found in co-op.
For example, creature AI has evolved since the original game, where creatures tracked a single target. In Subnautica 2, creatures can track and respond to the activities of multiple players. This might mean going after the player that is giving out the most light or making the most sound, adding a new layer of tension to the experience and making the world feel “a lot more dynamic and alive.”
Additionally, the developers state that co-op gives players that may have felt intimidated by the original game a gentler point of entry. If Subnautica simply felt too scary alone, having some friends by your side may help you get through Subnautica 2.
What We Know So Far
Subnautica 2 supports four-player co-op from start to finish, though there are no multiplayer-exclusive features and it can be played 100% solo. A drop-in, drop-out system means that you can join up with and leave your friends at any time.
- Released
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May 14, 2026
- ESRB
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Everyone 10+ / Language, Fantasy Violence
