'Subnautica 2', developed by Krafton's creative studio Unknown Worlds, has surpassed 4 million units sold globally just five days into its early access launch. The game is the official successor to the Subnautica ocean survival series.

Subnautica 2 recorded 1 million sales immediately upon its early access launch. It then surpassed 2 million units within 12 hours and reached 4 million units globally in five days. On Steam, the game saw a peak of 467,000 concurrent players, with an average of 1.3 million daily active users.

The cumulative playtime reached 28.57 million hours, and as of 10:00 AM on the 21st, it maintains a 'Very Positive' rating on Steam (91% positive out of 71,891 reviews). Unknown Worlds has announced plans for future updates regarding creature aggression and behavior based on player feedback.

Lee Jin-hyung, a lead at Krafton, stated, "Player feedback is crucial for perfecting the deep-sea experience that Subnautica 2 provides," adding, "We will spare no support to ensure the early access journey is a satisfying one for players."

Subnautica 2, the official successor to the Subnautica series, implements an unknown ecosystem with Unreal Engine 5-based graphics and introduces a co-op mode for up to four players for the first time in the series. The development team stated that they plan to polish the game based on user feedback over the next two to three years before the official release.

Subnautica 2 early access is currently available on Steam, the Epic Games Store, and Xbox Series X/S.