The ocean is vast, mysterious, and terrifying—especially when it’s on an alien planet. Subnautica 2 is the latest action-adventure survival game in development by Unknown Worlds Entertainment. This sequel to 2018’s Subnautica, the third game in the series after 2021’s Subnautica: Below Zero. Promises to build on the breathtaking beauty and success of its predecessor with new biomes, terrifying creatures, and expanded storylines. Here’s why survival gamers can’t wait to dive in.
Subnautica 2 Storyline:
In Subnautica 2, players find themselves on a new alien planet covered almost entirely by water. But, this time, the stakes are even higher as you delve deeper into new unknown biomes, encounter creatures both majestic and deadly, and uncover secrets that could determine the fate of the planet—and your survival.
Key Features:
- Expansive Underwater Biomes: Explore vast, beautifully designed environments ranging from coral forests to deep-sea trenches.
- Advanced Crafting Systems: Build submarines, underwater bases, and new tools to enhance survival.
- Terrifying Creatures: Face off against new and more dangerous alien lifeforms.
- Play Style: Solo or Co-op
Gameplay Mechanics:
Subnautica 2 focuses on exploration and resource management. Players must dive into increasingly dangerous depths to uncover resources while balancing oxygen, food, and water levels. The addition of new crafting mechanics allows for more customization of bases and equipment.

Why it Stands Out:
With 270’000 overwhelmingly positive reviews on Steam The original Subnautica set a high bar for underwater exploration games. Subnautica 2 aims to surpass it with richer storytelling, expanded gameplay mechanics, and breathtaking visuals.
Subnautica 2: Release Date & Platforms:
Late 2025, PC, X Box.
Want to find out what other great survival games are coming out in 2025? Check out 10 Highly Anticipated Survival Games Coming in 2025