alien

ambiance

ambience

atmospheric

background

cosmic

creepy

deep

drone

drone fx

edgy

eerie

electric

enigmatic

extraterrestrial

fearful

flyby

frightening

game

ghost

haunting

hum

industrial

level tone

low

magnetic

marvelous

morphing

motion

movement

ominous

pass by dark

planetary

pulse

reactor

room tone

scary

science fiction

scifi

sinister

soundscape

spacecraft

sub

surreal

suspense

tension

transform

transition

ufo