Complex sentence: Games on the PlayStation 4 are not region-locked, so games purchased in one region can be played on consoles in all regions, and players can sign into any PS4 console to access their entire digital game library.
Split into simpler sentences: Games on the PlayStation 4 are not region-locked, so games purchased in one region can be played on consoles in all regions. Players can sign into any PS4 console to access their entire digital game library.