I now work with one of the guys from Ocean, Stephen Hey, who was about during the period that game was released. I'm envious as I was still in university at the time and yet he doesn't see much fuss in his working (in sales) for one of the great classic software developers.
Then again the company we work for now is probably seen by the teens today as ground breaking/classic of the future.
I tracked down a copy of the game for DOS and ran it in a virtual machine (doesn't run well in DOSBox)...the PC version...well, hell, the Amiga version too...were pretty groundbreaking. The DOS version had fine graphics and non-orthagonal walls before Doom, plus look up/down before anyone else (including the awesome Ultima Underworld and System Shock). Sadly the FPS parts were hindered by poor controls - you could mouse around, but no mouselook, and moving forward required pushing the mouse, moving it back, and pushing it forward again (or using bound keys).
Tell your co-worker at least one retro-game fan appreciates their hard work on making a decent game, and trying their damnedest to make a palatable port of it for the Amiga, too!
