Zero Online is the first 2.5D MMORPG developed in China that is set in a science-fiction universe with robot avatars. It is a sci-fi online game developed and published by 91 Entertainment.
In the world of Zero, the players no more play as warriors or mages in a desolate land but the pilots who master high-tech weapons, fighting in the immense universe. Shuttling between the numerous galaxies, the units of various forms and functions are navigated by the pilots to fight against ferocious alien enemies. It is an epic war: battling for the Earth Alliance is the pilots' ultimate honor and eternal duty.