Call of Duty: Warzone brought in 15 million players within four days of release.

As announced on Twitter (below), the battle royale hit the milestone on March 14th – four days after launch.

Furthermore, the game mode brought in six million players within 24 hours of being released. Warzone was first teased in the trailer for season 2. Last week, it was revealed that Sledgehammer games aided in the development of the battle royale mode.

Call of Duty: Modern Warfare is the second game in the franchise to feature the popular game mode. The first being Black Ops 4 in 2018 – it featured the 50-player Blackout battle royale. However, not only does Warzone allow more players in a match – 150 – but it also free to everyone, even those who do not own Modern Warfare can play.

Released in October 2019, Modern Warfare sold five million digital copies that month. Furthermore, it has proven to be the most popular multiplayer game for the franchise for six years.

Last week, long-time fans of the series were given hope that a Call of Duty: Modern Warfare 2 remastered could be released this year. In February, the Call of Duty movie was put on hold – it will not move forward until all parties agree on what direction to take.

We crossed 15 million players earlier today, thank you #Warzone fans. #FreeCallofDuty pic.twitter.com/6Xw7MyFk2C

— Call of Duty (@CallofDuty) March 14, 2020