Please note: this is the NTSC version of the game which is compatible with PAL systems. Any future DLC may require a US PSN account.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. Sub Nautica is an underwater adventure game set on an alien Ocean planet. A massive, open world full of wonder and peril awaits you!. What is the issue?1) My PS4 Hard Disc Drive says Cannot Access System Storage or my System is Freezing: Shut down the PS4 and unplug it from the wall or power strip for 2 minutes and plug into a different outlet and power on your PS4Start the PS4 and go into Safe Mode 5 to (Rebuild Database)2) Start the PS4 and this time go to Safe Mode 7 to Initialize: Important: This step deletes all information on the Hard Disc Drive. If possible, save your data to USB or back it up to the cloud via PlayStation Plus storage. You will then need to reinstall the PS4 system software.