Sci-Fi Soundtrack Could also be an opening theme. This is a warbling mono synth. Pretty dark... not super unpleasant. Second section is more staccato, and can be used on its own. - Kevin MacLeod
Sci-Fi Soundtrack Liquidy, sharp, clicky atmosphere. Wherever this is - it is not a pleasant place to be. Could be noxious underground lair or ruined city infested with mushroom beings. - Kevin MacLeod