Ambiance Lonofi « Aperture Science »
Now you're thinking with portals!
Piste « Orion »
Orion drone
Piste « Laboratory »
Futuristic laboratory background with sounds of air conditioning, engines and computers
Piste « Spacecraft (1) »
Spacecraft background with sounds of air conditioning and engine
Piste « The space citadel »
A Sci-Fi ambient music