The evil Cyrus T. Gross safely rules his intergalactic crime network from the man-made asteroid Talos. No law enforcement agency has ever succeeded in bringing him to justice. You're the last of hope of the Free Worlds to get rid of Cyrus: a battle-hardened veteran of the Nemesis organisation. Your mission, fly the N.O.M.A.D. 471 attack droid to Talos and destroy the threat forever.
N.O.M.A.D. is a top-down view action game. The player pilots the combat droid, using the left and right keys to control the ship's facing and the forward and back keys to choose the direction of thrust (a joystick can also be used). The player must travel through screen after screen of enemies and traps. Some areas have doors that are unlocked by a nearby lever. Some areas also change the inertia of the ship, making these screens harder to navigate.