Hi Everybody. Long-time lurker, first-time poster in need of a little assistance.

There is an episode of Magnum P.I. ('Little Games' from Season Five) which has a great scene of Magnum playing a computer RPG. Of course in the end, he crashes the system, but I digress:

Pic 1
Pic 2
Pic 3

For the life of me, I can't ID this game. It's too early for 'Dungeon Master', which came out in 1987, I believe (although ironically, in the episode the game is referred to as 'THE Dungeon Master'). It sort of looks like '3D Monster Maze' or 'Dungeons of Daggorath', but these graphics are a little more advanced. I've looked and looked and can't find anything close a game from 1984 (when this episode was filmed) or earlier which would have looked like this!

Any help would be much appreciated.

Thanks!

Does this game exist at all? I could imagine it was made up just for this movie in some following picture screens, being no game at all.
Might be at most some Amiga game, looking on the advanced, for that time, graphics. Too good for C64, even for C128.

The middle screen looks made up to me.

Is the game that Josh plays in the movie Big real?