Subnautica 2 Sells Over 4 Million Copies in Less Than a Week

Subnautica 2 sold over 4 million copies in less than a week, generating an estimated $100M. It became the fastest-selling game on Steam in 2026.

Subnautica 2 Sells Over 4 Million Copies in Less Than a Week

Unknown Worlds released Subnautica 2 and the title achieved immediate commercial success. The game sold over four million copies in less than one week after launch. This performance generated an estimated $100 million in revenue.

Unknown Worlds' title generated $100M revenue in first week

Alinea Analytics tracked the sales velocity of the game during its first five days on the market. The data indicates that Subnautica 2 became the fastest-selling game on Steam in 2026 so far. The title sold three times faster than Crimson Desert and nearly twice as fast as Resident Evil Requiem.

Subnautica 2 sales chart showing fastest-selling game on Steam in 2026 per Alinea Analytics data.
Subnautica 2 sales chart showing fastest-selling game on Steam in 2026 per Alinea Analytics data.

The game reached a global audience through multiple platforms. Players could purchase the title on Steam, where it passed four million copies sold less than a week after launch. The Xbox version also launched at release but accounted for less than 100 thousand copies.

The sales figures highlight a significant financial milestone for the developer. Krafton faces a potential $250 million bonus payment to Unknown Worlds as part of an ongoing legal dispute between the co-founders and the publisher. Industry observers note that wishlists do not equal actual sales, which adds context to pre-launch metrics.

Unknown Worlds developer logo alongside Subnautica 2 revenue milestone of $100 million.
Unknown Worlds developer logo alongside Subnautica 2 revenue milestone of $100 million.

Unknown Worlds has not confirmed specific details regarding future updates or additional platform releases beyond the initial launch window.

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