Ends 1/24 at 10AM PT. PlayStation Store has the Call of Duty Black Ops 4 Blackout Trial (PlayStation 4) for $0 downloaded. IGN.com gives COD:BO4 Blackout (Battle Royale) a very solid 9 out of a possible 10.

Alternatively, you can play the trial on PC (Requires the free Blizzard Battle.net desktop app) and Xbox One (Requires Xbox Live Gold) for $0 downloaded.