S.O.S. means Save Our Souls and is what is shouted by the stranded humans on the planet's surface. You may have guessed that this game is a type of lunar lander and rescue game. You must fly past many layers of alien types or meteors which are superbly animated and scroll smoothly across the screen. At the top is your mothership. When ready you will need to fly down to one of the six landing pads and pick up one of the six stranded humans and again, avoiding or shooting alien space ships, make your way back to the mothership where docking is required or the humanoid will fall down to the ground and meet a nasty death.

S.O.S. features great graphics, instructions in the program, good sound and Kempston and Sinclair joystick options. Well worth a look at.