This Scott Adams game is not as good as the first two, but still good.
You have to race through a small nuclear complex to find a saboteur, and to discover two different keys, some color-coded passwords, and a lot of pictures of yourself.
There are a few puzzles that are really hard; with no hints and no internet back in the day, this would have taken forever to solve. Overalll, though it was an enjoyable experience.
Is this the first example of color-coded keys in a lab? It's certainly an early example.