Subnautica is a single-player adventure in a vast open world, with a first-person view, survival elements, and sandbox features. Playing the game... Read more
(Для установки просто скопируйте в папку SavedGames и ирайте )
сохранение находиться
SteamsteamappscommonSubnauticaSNAppDataSavedGames
Useful links: