Dunjax, Navjet, Silmar

This is a set of shareware games which feature
some of the worst graphix ever seen on VGA.
(But that's only what we think)

Anyway, here are the codes (all of them) :

Navjet : NVJT, SHIP, GUNS, FODD, XXYY
Dunjax : AMCC, KLOP, TART, STAR, QUME (Information from Cheat Machine)