Does that include players who got the game for free?
Yeah that probably includes those 8-10m or so PS4 users that got it free.
Still...... its impressive 40m is a alot, most games dont ever see that many.
Necro-bump this 2020: http://gamrconnect.vgchartz.com/thread.php?id=229249
Bumb in 2021: http://gamrconnect.vgchartz.com/post.php?id=9047071