Here at Ars, we have a longstanding obsession with revealing the hidden numbers in the secretive world of video game sales and gameplay data. So we were intrigued this weekend when we heard that Sony seems to have inadvertently revealed the total number of players for a large majority of the PS4’s library.
The leak centers on Sony’s recent My PS4 Life promotion, which lets users generate a personalized statistics video for their PSN Gamertag. Amid some aggregate statistics and “total hours played” numbers for your favorite games, the video also lists your “rarest” trophy and, crucially, the precise number of PSN users who have earned that trophy.
Sony has long made public the percentage of a game’s players that have earned any specific trophy on PSN (rounded to the nearest tenth of a percent). Combining that percentage with the “My PS4 Life” numbers, that makes it relatively simple to reverse-engineer an overall “players” estimate for that game.