When I finished my first run of Subnautica, something definitely came over me. I ran around in my base cleaning up, I organized all my spare food and water in a cabinet “for the next person stranded here,” I released the fish in my alien containment, said farewell to my cuddlefish, parked my Seamoth in the moon pool, turned the lights out in the Cyclops, the whole bit. An amazing adventure was at an end.