Subnautica 2 outpaces Crimson Desert, Slay the Spire 2, and more to become “Steam’s fastest-selling 2026 game so far,” analyst says

Subnautica 2, which managed to sell a whopping two million copies selling in just 12 hours, is unsurprisingly still making waves – so much so, in fact, that it’s beating out the likes of Crimson Desert and Slay the Spire 2 over on Steam.

Rhys Elliott, head of market analysis at Alinea Analytics, reports as much in a new article, revealing that the Subnautica sequel has “already sold 4.1 million copies in its first week, generating $100 million in revenue.”

According to the analyst, most of these – four million of them, in fact – sold on Steam, with Xbox selling just under 100,000 copies, but it’s important to note that “plenty of Xbox players got their hands on Subnautica 2 thanks to Game Pass.”

The total player count is “well over” six million, with Alinea Analytics’ estimates showing that, “based on its performance so far (five days in), Subnautica 2 is Steam’s fastest-selling 2026 game so far.”

Elliott includes a handy little chart comparing Unknow Worlds’ gem to other giants this year, like Crimson Desert, Resident Evil Requiem, and Slay the Spire 2 – and boy, does it highlight some impressive figures.

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Subnautica 2 is selling 1.4x faster than Slay the Spire 2, nearly 2x faster than Resident Evil Requiem, and a whole 3x faster than Crimson Desert, as per the chart.

“But owing to differences in price, Resident Evil Requiem is the leader in terms of gross revenue with $120 million five days in, versus $96 million for Subnautica 2, $78 million for Crimson Desert, and $58 million for Slay the Spire 2.” That checks out.