HOW LONG TO BEAT SUBNAUTICA?
Subnautica by Unknown Worlds takes about 26 hours to beat the main story, or roughly 49 hours to complete 100%.
Time to Beat
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Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more, all while trying to survive.