A free-to-play battle royale mode, known as RedSec, will be introduced in Battlefield 6 with the season one update.
No purchase of the main game is required to play it. The mode will be available at 8:00 am Pacific time.
Eyes up. Plates on. #REDSEC arrives tomorrow at 8:00 PT / 15:00 UTC
The mode has undergone testing and changes have been made based on player feedback, as stated on the Battlefield 6 Steam page.
Author's summary: Battlefield 6 gets free battle royale mode.