The DUSK Soundtrack is mostly composed by Andrew Hulshult (barring "I", and "End of a Journey") which were made by David), and is composed of various Industrial Metal (with some general heavy metal, and thrash) and Ambient themes. The native format of the songs (and pretty much all of the game's audio files), are .wav files, which can be played in any modern media player made since the 1990s.
| Song Name | File Name | Appearance | Specific Genre |
|---|---|---|---|
| Dusk | dusk_theme_master2 | Main Menu Theme | Ambient Industrial |
| Still Alive "1st Part" | unused_amb_loop | Intermission | Industrial Ambient |
| Still Alive "2nd Part" | unused_action_loop | Episode End Text | Industrial Metal |
| Unnamed | E1M1_loop | E1M1 | Dark Ambient |
| Unnamed | E1M2_amb | E1M2 | Industrial Ambient |
| Bleeding Out | l2_loop_action | E1M2 | Industrial Metal |
| Ashes to Ashes, Dusk to Dusk "1st Part" | E1M3_amb | E1M3, Episode 1 Level Selection Screen | Ambient |
| Ashes to Ashes, Dusk to Dusk "2nd Part" | E1M3_action | E1M3 Red Key Door trap room | Soft Industrial Metal |
| Unnamed | Intoxigator_loop | The Intoxigator, The Duke Brothers, Son of Intoxigator, and The Twins Boss Fights | Industrial Metal |
| Alienation Akimbo | E1M4_amb | E1M4 Ambient Music | Soft Industrial Metal |
| Twin Terrors "1st Part" | E1M5_amb | E1M5 Ambient Music | Soft Industrial Metal |
| Twin Terrors "2nd Part" | E1M5_actionloop | E1M5 Action Music | Thrash Metal |
| Mine Control "1st Part" | mines_amb_loop | E1M6 Ambient Music | Industrial Ambient |
| Mine Control "2nd Part" | mines_action | E1M6 Action Music | Thrash Metal |
| Handgun Harmony | E1M6_HQ_Loop | E1M7 music | Industrial Metal |
| Camouflaged Conspiracy | E1M8_amb | E1M8 | Industrial Ambient |
| Unquenchable Anger "1st Part" | E1M7amb_loop | E1M9 | Industrial Ambient |
| Unquenchable Anger "2nd Part" | E1M7action_loop | E1M9 | Industrial Metal |
| I (Short) | synthbeatloop | E1M10 "What Have We Created?" Room | Electronic Ambient |
| Departure to Destruction "1st Part" | boss1_action | E1M10 Experiment #1 | Industrial Metal |
| Departure to Destruction "2nd Part" | experiment_phase_2 | E1M10 Experiment #2 | Industrial Metal |
| Death from Above "1st Part" | E2M1_Ambient | E2M1 E2M1 Ambient | Industrial Ambient |
| Death from Above "2nd Part" | E2M1_Action | E2M1 E2M1 Action | Industrial Metal |
| Unnamed | wnedingo_ambientspace, low_tone_1 | E2M2 Underground Ruins Ambience | Ambient |
| Skinwalker "1st Part" | EP2 SONG 1 Amb_Loop | E2M2 E2M2 Action | Industrial Metal |
| Skinwalker "2nd Part" | EP2 SONG 1 Action | E2M2 E2M2 Action | Industrial Metal |
| Tension Ascension "1st part" | E2M3_amb | E2M3 Ambient | Industrial Ambient |
| Tension Ascension "2nd part" | E2M3_action | E2M3 Action | Industrial Metal |
| Unnamed | E2M3_horror | E2M3 Horror | Industrial Ambient |
| Unnamed | E2M4_introamb2 | E2M4 Ambient (pre-switch) | Industrial Ambient |
| Anesthetized | E2M4_amb | E2M4 Ambient (after switch) | Industrial Ambient |
| Heart of the Thresher | E2M4_action_loop | E2M4 Action | Industrial Metal |
| Run "Unreleased Mix" | E2M4_action_noGTR | E2M4 Action (Secret Level Activation Room) | Industrial Metal |
| Run | E2M4_action_withGTR | E2MS Track | Industrial Metal |
| Bottoms Up | E2M5 | E2M5 Track | Electronic Ambient |
| Murder Machine Inc "1st Part" | mini_boss_Loop_2 | E2M5 "Mama" Fight | Industrial Ambient |
| Erebus Reaction | E2M6_action | E2M6 Action Track | Industrial Metal |
| A View from Below | E2M6 Amb Loop | E2M6 Ambient | Electronic Ambient |
| Murder Machine Inc "2nd Part" | mini_boss_Loop_1 | E2M6 "Big John" Fight | Industrial Metal |
| Power Of Babel '1st Part" | e2M7_amb | E2M7 Ambient | Electronic Ambient |
| Power Of Babel '2nd Part" | E2M7_Action | E2M7 Action | Industrial Metal |
| Unnamed | E2M8_amb | E2M8 Track | Horror Ambient |
| Unnamed | E2M9_amb(2) | E2M9 Track | Industrial Ambient |
| Hand Cannon | Boss_Track_2_loop | E2M10 "The Guardian" Boss Fight | Industrial Metal |