The document summarizes key elements of the soundtrack from the video game Bioshock. It describes the setting as moving from a plane crash into the ocean to an underwater city. It notes the mood was meant to be creepy and mysterious. Production techniques used included recorded or stock sounds edited for the setting, lowering the pitch and slowing playback of sounds to suggest being underwater, string instruments and drums to set the ominous tone, and voice acting with added effects to sound like 1940s recordings.