Dive deep into the underwater adventure to survive, explore the wonders and counter the dangers of the fantastic ocean. Make sure to build the right equipment to fight ugly creatures of the deep, pilot submarines and underwater drones, build your base on the bottom, earn food and drinking water, and fight the sea monsters all the way.
Downloading Subnautica 5.6.2 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available.
The program's installer is commonly called Launcher.exe, SmartSteamLoader.exe, SmartSteamLoader_x64.exe, SSELauncher.exe or Sub.exe etc. The software lies within Games, more precisely Adventure. Subnautica can be installed on 32-bit and 64-bit versions of Windows XP/7/8/10/11. We recommend checking the downloaded files with any free antivirus. The following versions: 5.6, 5.2 and 5.0 are the most frequently downloaded ones by the program users. The actual developer of the program is Unknown Worlds Entertainment.
From the developer:
Subnautica is an open world, underwater exploration and adventure game. Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines, terraform voxel terrain, and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more.
You may want to check out more software, such as LastChaos, FATE or Rohan, which might be similar to Subnautica.