在“寂静被提”事件后的末世未来，一名囚犯驾驶名为“铁肺号”的潜艇，在一颗荒芜卫星的血色海洋中探索，寻找消失的星辰与行星。该片由同名游戏改编。
Mark Fischbach
Simon
Caroline Kaplan
Ava
Troy Baker
David
Elsie Lovelock
SM-8 Research Lead / The Speaker (voice)
Elle LaMont
SM-8 Research Assistant / The Whisper (voice)
Mick Lauer
The Guy Who Told You to Cross the Wires (voice)
Dave Pettitt
The Father
Holt Boggs
Eden Soldier
Isaac McKee
Young Simon
Roman Parsons Crow
Child of Eden
River Van Coleman Crow
Townes Blaine Crow
Asher Wagh
Kazuki Jalal
