Pick Subnautica 2 if…
You want the new ocean, you want to play with friends in 4-player co-op, or you want to be on the ground floor as content lands during Early Access.
Series comparison
Subnautica 2 vs Subnautica 1 (and Below Zero)
The honest comparison if you have played the originals and want to know what is actually new, what is just iteration, and which one to start with.
Biggest difference: 4-player co-op (a series first), and the game launches into Early Access rather than as a finished 1.0. The original Subnautica spent four years in EA before its 1.0 in 2018, so expect a similar long arc for Subnautica 2 if you want a "complete" experience.
| Aspect | Subnautica 2 | Subnautica (2018) | Below Zero (2021) |
|---|---|---|---|
| Release | Early Access, May 14, 2026 | Original Subnautica 1.0, January 2018 (after 4+ years of Early Access) | Subnautica: Below Zero 1.0, May 2021 |
| Launch price | $29.99 USD (Early Access) | $29.99 USD | $29.99 USD |
| Co-op / multiplayer | Online co-op for up to 4 players + cross-platform multiplayer | Single-player only (no official co-op) | Single-player only |
| Setting | New alien ocean. Biomes, creatures, and story are revealed during Early Access | Planet 4546B, survival after a starship crash | Planet 4546B, frozen polar region with returning protagonist context |
| Story format | Some narrative at launch, more story content rolls in during Early Access | Full single-player story arc at 1.0 | Tighter, character-driven story at 1.0 |
| Platforms | Steam, Epic, Xbox Series X|S, Xbox on PC, ROG Xbox Ally, Game Pass Ultimate, PC Game Pass | Steam, Epic, PlayStation 4/5, Xbox One/Series, Switch, Mac | Steam, Epic, PlayStation 4/5, Xbox One/Series, Switch, Mac |
| Game Pass at launch | Yes. Day-one Game Preview on Game Pass Ultimate and PC Game Pass | Added later | Added later |
| Build maturity | Early Access baseline. Biomes, creatures, craftables, vehicles, and story will expand over time | Final 1.0 build with established meta | Final 1.0 build |
Stay on Subnautica 1 if…
You want a finished, single-player story experience without waiting for updates, and you have not played the original yet.
Try Below Zero if…
You finished the original and want a tighter, character-driven story in a frozen polar variant of the same world.
What is genuinely new in Subnautica 2
- ▸Online co-op for up to 4 players. The original and Below Zero are single-player only, so this is the headline change for the series.
- ▸Cross-platform multiplayer between Steam, Epic, Xbox on PC, and Xbox Series X|S.
- ▸Day-one Game Pass via Game Preview on Ultimate and PC Game Pass.
- ▸Living Early Access build. Content expands over time rather than launching as a finished 1.0.
What carries over from the series
- ▸The Subnautica core loop: scan, gather, craft, dive deeper, build a base.
- ▸Oxygen and depth pressure remain the central tension.
- ▸Vehicles, habitats, and progression-locked biomes shape the exploration arc.
- ▸Same studio (Unknown Worlds), so the visual language and creature design philosophy stay consistent.
Frequently asked: Subnautica 2 vs Subnautica 1
Is Subnautica 2 a sequel or a spin-off?
Subnautica 2 is the next mainline entry from Unknown Worlds, set in a new ocean. Subnautica: Below Zero (2021) was a smaller follow-up to the original.
Does Subnautica 2 add multiplayer to the series?
Yes. Subnautica 2 is the first game in the series with official online multiplayer, supporting up to 4-player co-op with cross-platform play between PC and Xbox.
Will Subnautica 2 replace Subnautica 1?
No. The original Subnautica and Below Zero remain available as finished single-player experiences. Subnautica 2 is a separate ocean with its own progression and a co-op mode.
Should I play Subnautica 1 before Subnautica 2?
You do not need to. Subnautica 2 stands on its own. If you want context for the universe and have never played the original, Subnautica 1 is still a strong place to start.
Is Subnautica 2 a complete game at launch?
No. It launches in Early Access. The first build includes several biomes, some narrative, and a starter set of creatures and craftables. More content lands during Early Access.
Launch details
Date, price, and Early Access scope.
Multiplayer
4-player co-op and cross-platform notes.
Game Pass
Subscription access on day one.
Launch planner
Platform pick and pre-launch checklist.