Can play together
Steam + Xbox + Game Pass
All supported PC and Xbox routes share one matchmaking pool.
Cross-platform co-op
Subnautica 2 Crossplay: PC and Xbox Yes
Yes for PC and Xbox ecosystems. No for PS5 and Switch, because those versions do not exist in Early Access.
Reviewed .
Locked out
PS5 and Switch
No Early Access version exists there, so those players cannot join.
Max group size
4 players
Hard cap. No 5-player or 6-player mode in current listings.
Subnautica 2 crossplay answer table
| Platform mix | Works? | What to know |
|---|---|---|
| Steam + Xbox | Yes | Use the in-game invite flow and make sure both players are on the same build. |
| Epic + Game Pass | Yes | Both are inside the supported PC/Xbox crossplay pool. |
| Xbox Series X|S + Xbox on PC | Yes | Both routes are supported for 4-player online co-op. |
| PS5 + PC | No | There is no PS5 Early Access version, so there is no PS5 crossplay. |
| Switch + PC | No | There is no Nintendo Switch Early Access version. |
| Steam save on Xbox | Not confirmed | Crossplay is confirmed; cross-save is a separate feature and has not been announced. |
Subnautica 2 crossplay: if this is not the page you needed
These are the next clicks people usually need after a crossplay check.
Subnautica 2 crossplay FAQ: every question, answered
Each phrasing people search for, with a direct answer.
🌐 Is Subnautica 2 cross-platform?
Yes. Subnautica 2 supports crossplay between Steam, Epic Games Store, Xbox Series X|S, Xbox on PC, ROG Xbox Ally, and Game Pass at Early Access launch on May 14, 2026. All supported PC and Xbox routes share one matchmaking pool.
💻 Is Subnautica 2 cross-platform between PC and Xbox?
Yes. A PC player on Steam, Epic, Xbox on PC, or PC Game Pass can join a console player on Xbox Series X|S or ROG Xbox Ally in the same session. There is no PC-only or Xbox-only matchmaking gate.
🎮 Will Subnautica 2 have crossplay with PS5?
No. Subnautica 2 is not releasing on PS5 in Early Access, so PS5 players cannot join from any platform. Crossplay only covers the PC and Xbox ecosystem.
🔗 Is Subnautica 2 crossplay between PS5 and PC?
No. There is no PS5 Early Access version, so PS5 cannot crossplay with PC, Xbox, Steam, Epic, or Game Pass.
💾 Is Subnautica 2 crossplay between Steam and Xbox?
Yes. Steam, Epic, Xbox Series X|S, Xbox on PC, and Game Pass players can all play together in the same 4-player session. After a hotfix, every player still needs the same game version; if Steam updates before Xbox or the Xbox app gets the same build, crossplay can temporarily fail until versions match.
👥 Why does crossplay say different game versions?
A hotfix can reach one storefront, platform, or region before another. Unknown Worlds noted Xbox certification timing during Hotfix 1 and said Hotfix 3 may take time to roll out worldwide, so a Steam player and an Xbox or Windows Store player can temporarily see different-version errors even though crossplay is supported.
🚫 Does Subnautica 2 have cross-save between Steam and Xbox?
Not confirmed. Unknown Worlds has announced crossplay but has not announced cross-save (carrying your save from one platform to another). Plan to pick one platform per save file at the start of Early Access.
❓ How many players is Subnautica 2 crossplay?
Up to 4 players per session. The cap is the same regardless of which platforms the group is on.
❓ Is Subnautica 2 cross-platform between Switch and PC?
No. Subnautica 2 is not on Switch at all in Early Access, so there is no Switch version to connect.
Subnautica 2 crossplay vs cross-save: not the same thing
✅Crossplay (confirmed)
You and a friend on different platforms join the same session. One person hosts, the rest connect. This is what Subnautica 2 supports.
⏳Cross-save (not confirmed)
Taking your save from Steam onto Xbox or vice versa. Unknown Worlds has not announced this. Plan to pick one platform per save file at the start.
If Subnautica 2 crossplay fails after a hotfix
Crossplay support does not bypass storefront rollout timing. After Hotfix 1, Unknown Worlds noted Xbox rollout can wait on certification; Hotfix 3 also says the patch may take time to roll out worldwide. Mixed Steam + Xbox or Steam + Windows Store groups should check build versions before changing network settings.
Check updates
Confirm Steam, Epic, Xbox, or the Xbox app has no pending update.
Match builds
Do not troubleshoot NAT until every player is on the same game version.
Use issue tracker
If versions match and joining still fails, compare the current known-issues list.
Setting up a mixed Subnautica 2 group
Two practical bits worth knowing before you set up a mixed-platform group:
- Pick a reliable host. Unknown Worlds has not detailed every save-hosting rule yet. Until the launch build says otherwise, assume the safest host is the person most likely to be available for every session.
- Invite flow. Steam-to-Steam works through Steam friends. Cross-ecosystem invites usually need a friend code or account ID. Have everyone exchange theirs before the session starts.
Related co-op pages
Where to dig in next once your group is sorted.
Split-Screen Status
No couch co-op, no local co-op, online-only group play.
Multiplayer Overview
Confirmed co-op player count, online play notes, and recommended session flow.
Game Pass Access
Game Preview, console, cloud, Xbox on PC, and PC Game Pass route.
Storefront Choice
Steam, Epic, Xbox, and subscription paths before purchase.
Steam Deck Status
Steam Deck Verified status, handheld tuning, and ROG Xbox Ally comparison.