In the Subnautica universe, "going deeper" is the core driver of both gameplay progression and narrative discovery. The deep sea is not just a setting; it is a mechanical gatekeeper that challenges your engineering and survival skills. 0.5.20 , 0.5.21 Core Depth Mechanics
: For the deepest dives (below 900 meters), the Prawn Suit is the most reliable vehicle for navigating intense pressure and treacherous terrain. 0.5.19
Developers have confirmed that the upcoming will feature a map that is both larger and deeper than the original. 0.5.7 It aims to "double down" on alien environments, allowing players to go further into the unknown than ever before. 0.5.3
: Deep-sea biomes like the Lava Lakes (1300+ meters) introduce extreme heat, requiring reinforced hull upgrades or specific suit protections to survive. 0.5.14 Key Deep-Sea Features