The title has held the top spot on Steam's global wishlist ranking for about nine consecutive months since September 2025, amassing an estimated 3.8 million wishlists and cementing its status as one of the most anticipated games of 2026. A new cinematic trailer released alongside the announcement showcased the game's alien ocean ecosystem and its survival mechanics.
Built on Unreal Engine 5, Subnautica 2 transports players to an uncharted alien planet and introduces four-player cooperative gameplay for the first time in the franchise's history. The series' predecessor, released in 2018, has sold more than 18.5 million copies worldwide and is widely regarded as a benchmark in the survival genre.
"We will actively engage with players throughout the early access period and refine the game together," said Ted Gill, chief executive of Unknown Worlds.
The launch comes after a turbulent chapter in the game's development.
Krafton ousted Gill and studio co-founders in July 2025 and delayed the release from its original 2025 window, triggering lawsuits and a court order that reinstated Gill as CEO earlier this year. The former developers alleged the shakeup was aimed at avoiding a $250 million earnout payment tied to the game's delivery.
Industry observers say the early access performance of Subnautica 2 will serve as a critical test of Krafton's push to diversify beyond its flagship PUBG franchise, particularly in Western markets where the Subnautica brand commands a loyal following.
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