DB:X is a lot different from DBO. DBO has a pretty big map while DB:X only Toki Toki City and there are lots of other things. In other words DBO is a complete MMORPG while DB:X a fighting game with some MMORPG elements. I would still prefer DBO. You''ll see, there will be no fun playing with keyboard - joystick all the way. While DBO is made for keyboard and mouse.