Fortix is strategy arcade game where the goal is to help the lone Fortix warrior reclaim Fortiana from the evil invading forces. This task is not done with swords or magic or even firepower; it's done by slowly retaking the land, which the warrior performs by walking on it.
Okay, so it's not that simple. The game adopts the gameplay from the 1981 arcade game Qix where the object was to take over as much of the game playing field as possible by drawing shapes. The same concept applies here with a warrior that draws shapes across the playing field by walking.