Great news One Piece fans! If you already now, One Piece Pirate Warriors 4 is about to be come a fun and hectic game with this news. Announced yesterday, One Piece Pirate Warriors 4 has upgraded the online gameplay which allow not just two players be part of a mission but now four players can work together. Revealed in the trailer down below, you can play up to four players online and work together and tackle online missions. One of the missions shown below is a four player battle with one giant boss. This game will be out on March 27th. 2020 for PS4, XB1, Switch and PC. The game story will go all the way up to the Wano Country arc.