Released in full on May 14, 2021, Subnautica: Below Zero is a standalone expansion and sequel to the original survival-crafting hit. Set in the arctic region of Planet 4546B, players take on the role of Robin Ayou to investigate the mysterious death of her sister.
The filename you are referring to, "Subnautica_Below_Zero_PS4-HR CUSA...", indicates a pirated or "cracked" version of the game specifically packaged for a jailbroken PlayStation 4 console. The "CUSA" string is the unique title ID used by Sony to identify specific game regions and versions in the PlayStation Store . The Context: Subnautica Below Zero Download File Subnautica_Below_Zero_PS4-HR CUSA...