HPlatformerReleasedH.E.R.O. ↗Commodore 64 / ColecoVision / Atari 2600 / ZX Spectrum / MSX / Atari 5200 / SG-1000
HPuzzleReleasedHacker ↗Classic Mac OS / Commodore 64 / Commodore Amiga / DOS / ZX Spectrum / Amstrad CPC / MSX
HPuzzleReleasedHacker II: The Doomsday Papers ↗Classic Mac OS / Commodore 64 / Commodore Amiga / DOS / ZX Spectrum / Amstrad CPC / MSX / Apple IIGS / Atari ST