Alien 8

"Alien 8 is a ZX Spectrum video game. It was written by Tim Stamper and Chris Stamper of Ultimate Play The Game, and was released by the company in 1985. The game was also ported to the BBC Micro, Amstrad CPC and MSX platforms. It is the follow-up to Ultimate's Knight Lore, which had been released in 1984. As with its predecessor, Alien 8 is a platform game rendered in then-novel isometric projection. In the game, the player takes control of a robot, Alien 8, whose job is to ensure that all of the cryogenically frozen passengers on a spaceship remain viable during the ship's voyage."

Source: Wikipedia, "Alien_8," available under the CC-BY-SA License.