I found these rather interesting games through a recent GGE gaunt. If you like the old 'Adventure game' genre you might have fun with them. The author (who is a graphics artist, obviously) made about 4 of them and a 5th sometime as a contest entry.

Anyhow you can play them here:

Submachine
Submachine 2
Submachine 3
Submachine 4

Submachine FLF

These are also available for download if you wanted to play them locally.