Will Subnautica 2 have crossplay and cross-platform support?

If you were wondering whether Subnautica 2 will support crossplay and cross-platform, you’ve arrived at the right place.

Subnautica 2 brings multiplayer to the series for the first time, letting you dive into alien oceans with up to three friends in co-op. Unknown Worlds Entertainment confirmed cross-platform multiplayer on Steam, with the game launching in Early Access on May 14, 2026.