SEGA has just released Phantasy Star Online 2 for Steam! PSO 2 is free-to-play and will support PSO2: New Genesis once it releases. The Steam version features special content courtesy of Valve including Half-Life and Portal items. More details about PSO2: New Genesis are available here and the Steam page is available here.
Lastly, Phantasy Star Online 2 is out now for Xbox One and PC in the west. Stay tuned at Final Weapon for the latest Japanese gaming news!