The latest major update for on Nintendo platforms is the Nintendo Switch 2 Edition Upgrade Pack , released on February 17, 2026. This free update, available on the Nintendo eShop , significantly boosts technical performance for players on newer hardware while maintaining the core survival experience of planet 4546B. Key Update Features (Switch 2 Edition)
: It targets a smooth 60 FPS across both modes, a substantial jump from the 30 FPS cap on the original console. Subnautica Below Zero Switch NSP (UPDATE) (eShop)
The upgrade pack introduces several major technical enhancements over the original Switch One version: The latest major update for on Nintendo platforms
Prior to the 2026 upgrade, several key patches addressed stability on the original hardware: released on February 17
: Improvements include more stable lighting, denser environmental detail, and sharper textures.