Terminus - The Prison Planet (1986)(Mastertronic Added Dimension)[a2] ROM Download for ZX Spectrum (TAP). Terminus - The Prison Planet (1986)(Mastertronic Added Dimension)[a2] game is available to play online and download only on Roms Games. Terminus - The Prison Planet (1986)(Mastertronic Added Dimension)[a2] ROM for ZX Spectrum download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.