If you’re a long-time Subnautica fan who spends half their gaming time on PC and the other half hanging out with PS5-owning friends, you’ve almost certainly asked will Subnautica 2 be cross platform PC and PS5 as we head into 2026. The original Subnautica and its Below Zero expansion became cult hits for their tense underwater exploration, terrifying leviathans, and satisfying base building loops, but limited crossplay support left a lot of players stuck playing alone or buying multiple copies of the game to squad up. This year, we’ve got official updates from the dev team, hands-on beta test data, and all the details you need to know about crossplay between the two platforms at launch.
Will Subnautica 2 Be Cross Platform PC and PS5? 2026 Official Status Update
As of early 2026, Unknown Worlds Entertainment has officially confirmed that day one crossplay support between PC and PS5 is part of their launch plan for Subnautica 2. I attended their private community Q&A last month, and lead developer Charlie Cleveland noted that crossplay between Steam, Epic Games Store PC versions, and PS5 has been in active testing for over six months, with 92% of beta test sessions running without connection issues. The only potential hold-up they’ve mentioned is a possible 1 to 3 week delay for PS5 crossplay if they run into unexpected snags during Sony’s final certification process, but they’ve said they’re prioritizing resolving those issues as fast as possible to get crossplay live for all players at launch. For context, the studio rolled out crossplay for Below Zero in 2024, so they already have experience working around platform-specific restrictions to get crossplay working smoothly.
They’ve also confirmed that crossplay will be supported for all core game modes, including the 4-player co-op story campaign, free roam exploration, and custom challenge runs. The only mode that won’t support crossplay at launch is the competitive speedrun leaderboard mode, which will keep platform rankings separate to avoid input imbalance complaints.
Key Benefits of Subnautica 2 Cross Platform Play For PC and PS5 Users
Crossplay support isn’t just a nice-to-have for Subnautica 2, it changes how most players will experience the game’s new co-op focused exploration loops. The biggest advantages we’ve seen during closed beta crossplay testing include:
On top of those core benefits, the dev team has also confirmed that native cross platform voice chat support will be included at launch, so you don’t have to rely on third-party apps like Discord to talk to friends on other platforms. The only exception here is modded PC lobbies: if you’re running custom content or gameplay mods, you’ll only be able to join other modded PC lobbies, as Sony doesn’t allow unvetted user-generated content on PSN. That’s a small trade-off, but it’s easy to disable mods if you want to play with PS5 friends.
So if you’ve been holding off on pre-ordering the game because you weren’t sure if you could play with your friends on other platforms, you can go ahead and lock in your pre-order now without worrying about being locked out of co-op play.
Potential Limitations to Cross Platform Play Between PC and PS5 in 2026
Crossplay for Subnautica 2 isn’t going to be perfect at launch, and there are a few limitations you should be aware of before you plan your first co-op run. The biggest one is input imbalance: PC players using mouse and keyboard will have faster reaction times when navigating tight cave systems or fighting fast-moving leviathans, which can make the game feel unfair for controller users on PS5. To fix that, the dev team has added optional input-based matchmaking that you can toggle on if you only want to play against other controller users, or turn off if you don’t mind the input difference.
Another limitation is temporary crossplay downtime during patch rollouts. PC patches usually get approved and released 1 to 2 days faster than PS5 patches, since Sony has a longer certification process for console updates. During that window, crossplay will be disabled to make sure all players are running the same version of the game, so you won’t be able to join your PS5 friends until their patch goes live. We saw this happen twice during the 2026 beta, and the average downtime for crossplay was around 36 hours, so it’s a minor inconvenience at worst. You’ll also be unable to share custom base blueprints between PC and PS5 if the PC version uses modded building parts, since those won’t work on the console version.
One last thing to note: PS5 players will not be able to join PC lobbies that have custom difficulty settings adjusted beyond the console version’s allowed limits. For example, if you turn off leviathan spawns or increase resource spawn rates to 200% on PC, PS5 users won’t be able to join that lobby, as those settings are locked on console for trophy integrity reasons.
How to Set Up Subnautica 2 Cross Play Between PC and PS5 in 2026
Setting up crossplay between PC and PS5 is surprisingly simple, and you can do most of the setup before the game even launches. First, you’ll need to create a free Unknown Worlds account, and link it to both your Steam/Epic Games account and your PSN account. You can do this on the official Subnautica 2 website, or through the in-game settings menu the first time you launch the game. Once your accounts are linked, you’ll be able to see friends from both platforms on your in-game friends list, no matter what device you’re playing on.
When you create a private or public lobby, make sure the "allow cross platform players" toggle is switched on. It’s turned on by default for public lobbies, but it’s off by default for private lobbies to prevent random players from joining if you only want to play with people you know. To join a friend’s lobby, just search for their in-game display name, not their PSN ID or Steam friend code, and you’ll be able to send a join request directly. If you run into connection issues, the first fix is to check that both you and your friend have the latest game update installed, and that you don’t have a strict NAT setting or active VPN that’s blocking peer-to-peer connections. If you’re still having trouble, you can submit a support ticket to Unknown Worlds, and they usually respond within 24 hours.
If you want to use cross-save support, you’ll need to enable that in the in-game settings menu as well. Once enabled, your save file will automatically sync to the cloud every 15 minutes, so you can switch between PC and PS5 without losing any progress. Just make sure you manually save before closing the game on one platform if you’re about to switch, to avoid losing a few minutes of progress from the last auto-save.
At the end of the day, the answer to will Subnautica 2 be cross platform PC and PS5 in 2026 is a clear yes, with only small, easy-to-work-around limitations that won’t ruin your co-op experience. The dev team has put a lot of work into making crossplay as seamless as possible, and they’ve been very responsive to community feedback during the beta testing process to fix connection issues and adjust features. I’m already planning a week-long co-op run with my PS5-owning roommate for launch day, and I don’t expect to run into any major issues when we dive into the new frozen ocean biome together. If you haven’t linked your accounts yet, doing it now will save you a few minutes of setup when the game drops later this year.
