Game Modes

While it is too early to say what game modes Subnautica will feature on release the games source files are hinting at possibly three modes.
 * 1) Survival
 * 2) Freedom
 * 3) Hardcore

Additionally a set of Prototypes was made available for fans through the Subnautica Special Edition  (10.000 copies).

Survival

 * Hunger and Thirst

Freedom

 * No Hunger and Thirst

Hardcore
Hardcore mode is assumed to play like the Normal mode - the difference being that the player has one life only.
 * Permadeath