All sounds were taken from FreeSound.org. Some were modified, some were combined with each other.

Heartbeat : .name
Shoggoth screech: nick121087
Deep One transform: quadraslayer
Weeper Idle: Idalize
Shoggoth Hurt: Darsycho
Weeper Transform: Grez1
Fletum weep: Melody_Plays, craigsmith
Canoe creaks: dheming
Tension: benjaminharveydesign
Breathe: u3190
Dagon tension: yewbic
Dagon thump: bareform
Deep One Roar: jacobalcook
Dweller Hurt: wjtaylor
Dweller Idle: Ashtalon, giddster
Rip Spine: dereklieu
Rip Heart: Slave2thelight
Alienis Dream: Wescwave, NewEonOrchestra, Yosarrian, luciolepri, Daleonfire, florianreichelt
Flute: hello_flowers
Parasite Death&Hurt: dobroide
Saw Cleaver Transform: CTCollab
Saw Cleaver Transform Attack: Kneeling
Worthless: Auesomeman38
Surgeon: erlipresidente