Subnautica 2 EA Review: A Beautiful Underwater World That Lost Its Magic


Subnautica 2: Alien Waters has launched in Early Access on PC, bringing players back to a vibrant alien ocean in Unknown Worlds Entertainment’s sequel to the acclaimed underwater survival title. Building on the foundation of the original, this new entry retains core gameplay elements including deep-sea exploration, resource gathering, base construction, and alien ecosystem discovery. However, early impressions reveal a game that has made significant changes to atmosphere, exploration logic, and survival mechanics that diverge sharply from its predecessor. Players awaken in pitch-black darkness at the start, surrounded only by wreckage, setting a consistently somber tone that marks a major departure from the original’s layered approach to fear and discovery.
The most significant change in Subnautica 2: Alien Waters is the introduction of a gene modification system that fundamentally alters the survival loop. Instead of progressing through equipment research and technology tree unlocks as in the first game, players must now adapt to the alien planet Proteus by modifying their DNA. The protagonist cannot initially digest local life forms, withstand high pressure or temperature, or even breathe properly. Players must explore to find Angel Combs and unlock genetic abilities. A Bio-Lab system allows players to scan alien sea creatures to acquire active and passive skills, which can be freely combined. Abilities include a dash for underwater speed boosts and oxygen control to reduce consumption while stationary.

A notable criticism concerns the complete removal of offensive capabilities. The original game allowed players to use knives and defensive tools to fight back against hostile small creatures, providing a baseline sense of security. Subnautica 2: Alien Waters eliminates all attack and knockback options, leaving players with no means of self-defense. This is compounded by significantly more aggressive marine life that actively pursues the player. Additionally, the Early Access build offers fewer craftable items and equipment compared to the original. The vehicle system currently features only the Tadpole, a submarine similar to the original’s Seamoth, though its handling and transition animations feel less polished than its predecessor.

The narrative structure has also been reworked. Rather than focusing on escape, the story now tasks players with following AI NoA’s residual signals to uncover the planet’s secrets. The game retains its signature map-free, guidance-light design, requiring players to search wreckage, collect black box data, and track anomaly signals. A new ecological threat called Water Bloom Virus has infected the ocean, causing widespread mutations. Players must venture into dangerous depths to access alien technology and build a Feedback Resonator to confront the source. The main quest currently ends at a climactic moment inside an ancient alien power station, setting up future content involving a region called Shangdu and a mysterious alien race called the Sea Cave Clan.
