Dead Zone (The Power House) Available for Commodore 64/128
Dead Zone (Matra) Available for Spectrum 48K/128K/+2/+3 A 'move the crosshair and shoot away targets' game, the targets being descending flying saucers en route to abduct humans from the planet you're defending.
Dead Zone (PCNONOGames) Available for Spectrum 48K/128K/+2/+3