The Subnautica spin-off will be brought to the mobile platform.
Unknown Worlds has confirmed they will be launching Subnautica: Below Zero to mobile on March 10, 2026. They have teamed up with Playdigious — the same indie game publisher they partnered with to launch a mobile port of Subnautica in July of 2025 — for the upcoming release.
Subnautica: Below Zero, a survival adventure game, is a spin-off of the original Subnautica, where the player plays as xenologist Robin Ayou and must search for answers regarding her sister's mysterious death on the frigid ocean planet, 4546B.
A Redesigned And Optimized Subnautica: Below Zero Experience For Mobile
Everything about the gameplay will remain the same, from the hardcore survival elements to the vast expansiveness of open-world exploration. On top of this, Subnautica: Below Zero will be optimized for the mobile experience.
Brave the cold... all from the palm of your hand
— Subnautica (@Subnautica) February 3, 2026
Subnautica: Below Zero is heading to iOS and Android on March 10th! Pre-order and pre-register today
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This includes an exclusive mobile UI fitted with touch controls, MFi (Made for iPhone/iPad) controller compatibility, and additional optimization for the iPhone15/15 Pro Max.
It will also become easier to play the game across multiple mobile devices, as it will utilize cloud storage to share progress between Android and iOS devices.
The system requirements have not been confirmed; however, from details shared on the App Store, the installation size will be 2.4 GB.
Players can pre-order or pre-register for Subnautica: Below Zero through the App Store and Google Play Store. The launch price is set at US$9.99 (or the equivalent in your local currency), but those who have pre-registered will receive a 10% discount and can purchase it for US$8.99.