Zax, an alien humanoid, crash-lands on an unknown planet overrun by hostile robots. He joins forces with the local tribes on the planet to stage a rebellion. The game is an isometric shooter. Movement is controlled with the keyboard, weapon aim and fire are controlled with the mouse. The player invests minerals harvested on the surface of the planet to develop new weapons and acquire power-ups that increase shields or gun power. The game includes 22 missions over 100 maps.