Call of Duty: Modern Warfare 4 Open Beta Begins August 28

Activision has launched an open beta for its upcoming shooter, Call of Duty: Modern Warfare 4, inviting all players to test the multiplayer mode ahead of the game's full release. The open beta began on August 28, 2026, and is scheduled to conclude on September 1, 2026, providing a four-day window for players across multiple platforms to experience the game. The open beta follows an earlier Early Access Beta that ran from August 21 to August 25, which was limited to those who had preordered the game. That initial period saw a peak of 115,145 concurrent players on its first day.