Jesper Kyd composed the main musical score for the original 2007 video game Assassin's Creed.
Kyd is a Danish composer known for electronic, orchestral, and atmospheric music. His score for Assassin's Creed combines choral writing, period-inspired color, and modern sound design to support the game's medieval setting and its science-fiction framing device.
The original game follows Altaïr Ibn-La'Ahad during the Third Crusade while also presenting Desmond Miles in a modern-day storyline. Kyd's music helps distinguish these layers and contributes to the series' recognizable audio identity.
Later Assassin's Creed games used different composers, including Lorne Balfe, Sarah Schachner, and others. Because the franchise has had many scores, those names are plausible but incorrect for the original game's principal composer.