"Living machines" were the first key words from Fatshark to Kyd as what we were after. This is reflected in the score with a sense of electronic machine breathing or talking, a performance created with the organic synth, the Yamaha CS-80 run through an array of pedals.
The Imperium is ruled by the Emperor of Mankind, ruler of one million worlds. 40,000 years into the future, the devotion to the Imperium is absolute and that devotion is front and center in this music. The score features a rousing performance by the Budapest Scoring Choir. The choir idea stems from the journey you go on as an outcast, then being recruited to work for the Imperium. The music follows the story from the Reject makes an entrance with the Nothing-to-Lose attitude all the way to becoming somewhat of an icon. Rejects will Rise.
The main theme embraces the sound of dark folk music mixed with a massive analog synth bassline, created with analog sequences from the 1970s.
All happenings in the game are reflected in the music. The bassline is the driving force of the underground vibe instilled in much of the score. The small folk-group inspired vocals on the score reminds the player where they came from, and it celebrates the journey of a rejected outcast who becomes a devout servant of the Imperium.