Equinox is an action video game developed by Mikro-Gen in 1986 for the ZX Spectrum, Amstrad CPC and Commodore 64. In the game you control a Dedicated Disposal Droid that must harvest the planet Sury Ani 7. However, there is a security system of defence droids trying to stop you. In order to progress you have to turn off the security system and clear the area of radioactive material. The game comprises 8 levels, each with a time-limit restriction. Source: Wikipedia, "Equinox (1986 video game)," available under the CC-BY-SA License.