Subnautica 2 Early Access Launch Marred by Leaks, Fueled by Legal Battles

Key facts

• Subnautica 2 launched in early access on Steam on May 14.
• The game sold over one million copies on Steam within two hours of its release.
• Subnautica 2 reached 467,000 concurrent players on Steam shortly after launch.
• Developer Unknown Worlds confirmed unofficial builds of Subnautica 2 are circulating online.
• Former publisher Krafton may be forced to pay a $250 million bonus to Unknown Worlds.
• The game had accumulated five million Wishlists on Steam prior to launch.
• Subnautica 2 features native four-player co-op and an overhauled base-building system.

A Stormy Debut for Subnautica 2

The highly anticipated early access launch of Subnautica 2 has been overshadowed by a wave of pre-release leaks, mirroring recent incidents involving other major titles. accessing unofficial builds of the game, raising concerns about data integrity and the official release experience. This digital turbulence comes as the game officially dropped on Steam for PC and Xbox Series X/S on Thursday, May 14, a date marked by both commercial success and ongoing controversy. Screenshots and gameplay clips of Subnautica 2 began appearing on platforms like Reddit shortly before its official launch. Reports suggest an individual managed to obtain a working copy of the game and streamed it, offering a glimpse into its early stages and menu options. This incident follows closely on the heels of similar pre-release leaks for games such as LEGO Batman: Legacy of the Dark Knight and Forza Horizon 6, highlighting a growing vulnerability in game distribution channels. In response, developer Unknown Worlds issued a statement confirming the circulation of "incomplete development versions" of Subnautica 2. A spokesperson cautioned that these unofficial builds do not represent the final product and warned against their use due to potential safety and stability issues. The developer stressed that the complete early access experience, including multiplayer and future updates, will be exclusively available through official channels on partner platforms.

Commercial Triumph Amidst Data Breaches

Despite the pre-launch leaks, Subnautica 2 has achieved remarkable commercial success. Within two hours of its early access debut on Steam, the underwater survival game surpassed one million copies sold. This rapid sales milestone underscores the immense player anticipation for the sequel. Data from SteamDB revealed that Subnautica 2 garnered a peak of 467,000 concurrent players on Steam in the hours following its launch. With over 1,000 reviews, the game has also earned a "Very Positive" user rating on the platform. This strong performance positions the game as a significant hit, exceeding initial projections and setting a high bar for its continued development. The game's popularity was foreshadowed by its staggering five million Wishlists on Steam, making it the most wishlisted game on the platform prior to its release. This indicates a broad and engaged audience eagerly awaiting the opportunity to dive into its alien aquatic world.

Legal Battles and a $250 Million Bonus

The triumphant launch of Subnautica 2 unfolds against the backdrop of a protracted legal dispute between its developer, Unknown Worlds, and its former publisher, Krafton. The commercial success of the game now makes it highly probable that Krafton will be compelled to pay a substantial $250 million bonus to Unknown Worlds, a payment the publisher had vigorously attempted to avoid. This bonus was tied to Krafton's acquisition of Unknown Worlds. Court documents revealed that Krafton CEO Changhan Kim, in 2025, consulted an AI chatbot to devise strategies for evading this payout. The trigger for the bonus was Subnautica 2 generating sufficient revenue within a specified timeframe. As projections indicated the game would meet these targets, Kim reportedly sought to stall or prevent the payment by initiating actions such as firing studio heads and asserting control over the game's development. However, a judge ultimately ruled in favor of Unknown Worlds in March. The court reinstated the studio's control over the game and its fired CEO, while also extending the deadline for earning the bonus. With Subnautica 2's impressive sales figures, Krafton appears poised to fulfill its financial obligation.

New Depths and Features for Players

Subnautica 2 introduces a host of new features and gameplay mechanics, building upon the foundations of its predecessor. A significant addition is native four-player co-op, designed to allow players to join sessions seamlessly without being at a disadvantage in resource collection. While co-op is optional, progression is shared, and cross-play is supported. The game is set in an entirely new world, diverging from the narratives of previous installments. Players assume the role of a silent diver tasked with adapting to an alien environment, uncovering its mysteries, and understanding their purpose. While the initial stages may resemble earlier Subnautica games, developers have stated the experience evolves significantly as players progress. Key gameplay enhancements include a more interactive ecosystem where creatures engage with their environment, and a greater emphasis on recipe scanning and crafting. A new submersible can be upgraded, and the base-building system has been completely overhauled with a more sculptural approach. Players can also choose between survival and creative modes. A Bloom blight affects parts of the environment, requiring players to cure infected plants and creatures. The game retains its signature scariness, particularly when the lights go down.

Early Access Roadmap and Player Experience

The early access version of Subnautica 2 is estimated to take between 14 and 20 hours to complete in its current state, according to the development team. At launch, the game features 10 distinct biomes, with plans to introduce more content as development progresses. Developers have also addressed the safety concerns surrounding leaked builds. They emphasized that files obtained through unofficial channels cannot be verified for safety or stability, and certain features might not function as intended. The official release, including all future patches and updates, will be delivered exclusively through authorized platforms. Beyond the immediate gameplay, the game's narrative centers on survival and discovery in an alien world. Players must learn to harness resources, craft tools, and build shelters to withstand the harsh environment. The introduction of an AI companion, which players can interact with when needed, adds another layer to the player's journey.

The bottom line

• Subnautica 2 has achieved rapid commercial success, selling over a million copies on Steam within hours of its early access launch.
• The game's debut was marred by pre-release leaks, with developer Unknown Worlds confirming the circulation of unofficial, incomplete builds.
• A significant legal battle between Unknown Worlds and former publisher Krafton appears to be resolved, with Krafton likely facing a $250 million bonus payment due to the game's success.
• Subnautica 2 introduces substantial new features, including four-player co-op, an overhauled base-building system, and a new alien world with an original storyline.
• The early access version offers an estimated 14-20 hours of gameplay with 10 biomes, with more content planned for future updates.
• Unknown Worlds urges players to use only official builds for safety and stability, warning that leaked versions may not function correctly.