Description from the video:
Subnautica 2 is an underwater survival adventure game set on an all-new alien world. It is the next chapter in the Subnautica universe, developed by Unknown Worlds.
Driven from your home by ongoing conflict, Alterra offers you the chance at a new life. But as the colony ship CICADA shepherds you and your fellow Pioneers to your new home, something goes awry. The ship’s AI insists that your mission should continue. Stranded and faced with near-insurmountable odds, you must do everything in your power to survive. The future of humanity on this world is in your hands.
Subnautica 2 enters Early Access on May 14th, 2026, at 08:00 PDT / 15:00 UTC.
The game engine itself was by far the most dangerous thing in hardcore mode 😆 But I got lucky and finished it too and it was a hell of a rush. More about caution and planning than mechanical skill like a lot of games.