Subnautica 2 Wiki

Subnautica 2 uses Unreal Engine 5 behavior trees and a custom stimulus system for creature AI. Creatures react to light, sound, and player actions in real time rather than following preset patterns.

Systems10/8/2026 5 min readDarkKnight_X

Crafting and resource gathering in Subnautica 2, including the decimal inventory system, resource-specific nodes, Scanner radar, dual progression paths, and co-op shared blueprints.

Systems10/8/2026 8 min readMikoTanaka

The creature-scanned active and passive ability system in Subnautica 2: all 15 BioMods, the four starters, how the Bioscanner unlocks the rest, and loadout advice.

Systems10/8/2026 9 min readWildcard88

Resource nodes in Subnautica 2 are material-specific gathering points that replace the randomized breakable outcrops from previous games. Combined with the decimal inventory system for precise resource tracking.

Systems10/8/2026 5 min readMikoTanaka

Blueprints and scanning form the core progression system of Subnautica 2: most recipes are unlocked by scanning fragments found in wrecks and debris rather than being handed to the player.

Systems10/8/2026 4 min readwillowmist

The Bio Lab is the base module in Subnautica 2 where BioMods are produced from collected DNA, equipped and swapped. It handles the reversible side of body modification, unlike permanent Adaptations.