Subnautica 2 Reaches 2 Million Sales in First 12 Hours
Unknown Worlds Entertainment announced that Subnautica 2 sold 2 million copies less than half a day after its early access release on May 14, 2026. This underwater survival and crafting adventure game launched simultaneously on PC via Steam and the Epic Games Store as well as on Xbox Series X and S, marking a significant milestone for the franchise.
Record-Breaking Player Numbers
The peak concurrent player count across all platforms exceeded 651,000, with Steam alone reporting over 467,000 players at once. This is nearly nine times the highest recorded concurrent players for the original Subnautica, which was released in 2018. Additionally, Subnautica 2 was the most wishlisted game on Steam heading into its launch, showing strong anticipation built from the franchise’s prior 18.5 million cumulative sales.
Game Features and Development Background
Developed on Unreal Engine 5, Subnautica 2 includes optional cooperative multiplayer for up to four players, aimed at enhancing the survival and exploration experience. Despite unresolved elements typical of early access titles, initial reviews, such as one from an established video game journalism platform, have given it a moderate rating of 7/10, praising its engaging gameplay while advising some players to await further updates.
The game’s journey to release was marked by challenges, including delays caused by internal disputes with publisher Krafton in 2025. Leadership changes at Unknown Worlds led to a legal battle concerning alleged withheld bonuses related to game milestones. A court ruling earlier this year reinstated the original management, allowing development to proceed and the game to launch.
Release and Future Updates
Subnautica 2 faced another hurdle when it leaked online shortly before the official release date. Nevertheless, this issue did not appear to impact the game’s strong commercial performance. The developers plan to continue updating the game with new content, aiming to expand its narrative, gameplay features, and multiplayer elements.
For players new to the game, various guides are available to assist with early exploration, resource gathering, and blueprint discovery, enriching the overall experience during the early access phase.

