Subnautica 2 Draws Nearly Half a Million Concurrent Players on Steam in First Hour

Subnautica 2, the highly anticipated sequel to the indie darling Subnautica, has made a splash in its launch, drawing in nearly half a million concurrent players on Steam within the first hour of its release. At the peak of its initial launch window, the game was played by an impressive 467,000 players simultaneously on Valve's platform. Furthermore, developer Unknown Worlds confirmed that Subnautica 2 sold an astonishing 1 million copies within the first hour, a feat made more impressive by its Early Access status and the fact that it launched on a weekday on PC and Xbox Series X and S.

The success of Subnautica 2's launch is not just in its numbers but also in its critical reception, which, while positive, is tempered with the acknowledgment that the game is still a work-in-progress. Our review awarded Subnautica 2 a 7/10, highlighting its enjoyable Early Access debut but also advising caution due to its current state.

"It’s pretty impressive that wading in the shallow tides of Subnautica 2's Early Access debut is as fun as it is already, and that should be a great sign of things to come, but I also wouldn’t blame anyone for waiting for these waters to rise a bit before getting their feet wet."

Our Review

Key Features Drawing in the Crowd

Several key features of Subnautica 2 are attributed to its immediate success:

• Co-op gameplay allows players to explore and survive together, enhancing the experience with social interaction.
• The game boasts a meaty narrative, promising depth for players invested in the story.
• The expansive sea to explore offers a vast, underwater world that captivates players with its mystery and beauty.

These features build upon the foundation laid by the first Subnautica, which captivated audiences with its serene yet mysterious alien ocean setting. Players once again take on the role of a spaceship crash survivor, tasked with survival and uncovering the planet's secrets, now with the added dimensions of co-op play and an even more compelling narrative.

Overcoming Challenges to Reach Launch

Subnautica 2's path to release was not without its challenges. Development began around 2022, with an initial target release in 2025. However, the game faced a significant setback following a dramatic altercation with its publisher, Krafton, which led to the removal of Unknown Worlds' leadership, including CEO Ted Gill, in July 2025. This move sparked a legal battle, with the ousted leadership claiming the actions were taken to avoid a $250 million bonus payout for meeting key milestones. The situation was eventually resolved with the reinstatement of Gill and his colleagues earlier this year, putting the game back on track for release.

A final hurdle came in the form of a pre-launch leak, but fortunately, this did not significantly impact the game's launch performance. The game's status as the most wishlisted on Steam prior to its release underscored the high anticipation and demand from the gaming community.

Looking Forward

Subnautica 2's launch is merely the beginning of its lifecycle, with plans for ongoing updates and the addition of new content. While the current state of the game is promising, the cautious approach advised by critics might be prudent for some potential players, given its Early Access status. However, for fans and the curious, the game already offers a compelling experience with its cooperative gameplay, engaging narrative, and vast underwater world to discover.

Given its launch numbers and the positive, albeit guarded, critical response, Subnautica 2 is poised to continue making waves in the gaming community. As development progresses and more content is added, the game is likely to attract even more players eager to dive into its depths.