Replayability isn’t the only metric for open world games though, a bigger part is “Is the open world interesting enough to invest time in outside of the main pl

Replayability isn’t the only metric for open world games though, a bigger part is “Is the open world interesting enough to invest time in outside of the main plot?” You might spend 20 hours playing through a main story, and another 200 running around doing other stuff without ever actually starting over in a new game.