XOR

XOR is a computer puzzle game created by Astral Software and published by Logotron in 1987 for a range of platforms including the Acorn Electron, Amiga, Amstrad CPC, Atari ST, BBC Micro, Commodore 64, and ZX Spectrum. It has since been unofficially remade for platforms including Windows, Apple Macintosh, Linux, RISC OS, the SAM Coupé, the Game Boy Advance, and Uzebox. XOR is a pure puzzle game with no random or arcade elements, as summed up by the blurb on Logotrons original extensive advertisin...