Unknown Worlds announced that Subnautica 2 has surpassed two million copies sold worldwide within 12 hours of its first early access launch.
The game is ranked No. 4 on Steam now with more than 347,000 concurrent players while continuing to hold the No. 1 position on Steam’s global top sellers charts across multiple countries. Check out our developer briefing story here.
Peak concurrent players across Steam, the Epic Games Store, and Xbox exceeded 651,000, with Steam alone reaching a peak of more than 467,000 concurrent players. This marks approximately nine times the all-time peak concurrent player count of the original Subnautica, which launched in 2018.
Player response has remained strong following launch. Subnautica 2 currently holds a “Very Positive” user review rating on Steam, with 92% positive reviews. Frequently praised elements include the game’s Unreal Engine 5-powered underwater visuals, four-player co-op multiplayer, survival and crafting systems, and narrative experience.
The game also generated significant momentum across livestreaming platforms. On Twitch, Subnautica 2 reached more than 413,000 peak concurrent viewers, ranking No. 1 across all categories. YouTube Live reached more than 109,000 peak concurrent viewers, ranking No. 1 in the gaming category.
Developed by Unknown Worlds, founded by Charlie Cleveland and Max McGuire, Subnautica 2 is the official sequel to the genre-defining Subnautica series, which has sold more than 18.5 million copies worldwide. Set on a new alien world within the Subnautica universe, the sequel introduces new ecosystems, enhanced visuals powered by Unreal Engine 5, and for the first time in the series, optional co-op for up to four players, allowing players to survive and explore together.
Subnautica 2 is available now on Steam, Xbox (Series X|S consoles and PC), and the Epic Games Store.