Dynasty warriors 9 is a hack and slash video game developed by omega force and published by koei tecmo. it was released for playstation 4 in japan on februar.... Dynasty warriors 9 is a hack and slash video game developed by omega force and published by koei tecmo.it was released for playstation 4 in japan on february 8, 2018, and for playstation 4, xbox one and microsoft windows in western markets on february 13, 2018.. Next