Subnautica 2 biome list leaked from developer vlog file names
A Reddit user spotted file names in a Subnautica 2 developer vlog background, revealing several potential biome names including a returning Kelp Forest, Overgrown Ruins, World Tree, and Void.
A sharp-eyed Reddit user spotted file names visible in the background of a Subnautica 2 developer vlog, revealing what appear to be biome names currently in development. The leaked names include a returning fan favourite and several entirely new locations.
What was spotted
- — Kelp Forest — a direct callback to the beloved biome from the original Subnautica
- — Overgrown Ruins — suggesting ancient structures reclaimed by marine life
- — World Tree — hinting at a massive central alien structure
- — Void — echoing the Crater Edge from Subnautica 1
Kelp Forest returns
The Kelp Forest was one of the most iconic early-game biomes in Subnautica 1, known for its towering Creepvine stalks and the presence of Stalkers. Its apparent inclusion in Subnautica 2 on planet Zezura has been warmly received by the community, though the alien ecosystem is expected to differ significantly from the original.
New biomes: Overgrown Ruins and World Tree
Overgrown Ruins raises immediate questions — are these Precursor structures from the Subnautica universe, remnants of a previous human expedition to Zezura, or something entirely new? The World Tree, meanwhile, has sparked enormous community excitement, with speculation centring on a massive living structure that may double as a story centrepiece.
The Void
In Subnautica 1, the Void (officially the Crater Edge) served as the map boundary — a terrifying expanse patrolled by massive Ghost Leviathans. Whether Subnautica 2's Void is a similar boundary mechanic or a fully developed explorable biome remains unknown.
None of these biomes have been officially confirmed by Unknown Worlds Entertainment. Names and details may change before Early Access in May 2026.