sonar-ping by Argitoth
underwater-ambience by jhumbucker
button by JarredGibb
alert by danielnieto7
hull creak by Ubehag
bomb - small by Zangrutz
bang 1 by bareform
explosion 3 by harpoyume
explosion by Nbs Dark
buzzer by nofeedbak
submarine alarm by samsara
torpedo launch by jobro
depth bomb by ZeSoundResearchInc.
cthulu growl by cylon8472
growl with reverb by cylon8472
All other assets by J Edeen