Lorien Testard

The music of the 2025 role-playing video game Clair Obscur: Expedition 33, developed by Sandfall Interactive, comprises a soundtrack album and extended play composed principally by Lorien Testard. The soundtrack of Expedition 33, the first professional video game Testard wrote music for, was composed towards a wide variety of musical genres and styles, ranging from classical to heavy metal, and made substantial usage of leitmotifs. During the five years of its development, Testard was joined by soprano Alice Duport-Percier, who took on the roles of vocal composer and main vocalist, as well as by approximately thirty other musicians and a nine-person choir for the soundtrack recording sessions.

The album, totaling 154 unique songs, comprises the soundtrack of Expedition 33's base game, released on 24 April 2025. It was met with unanimous praise from both audiences and critics for its distinctive atmosphere, emotional weight, and adaptability. Physical vinyl and CD releases in collaboration with record label Laced Records were announced in July 2025, and shipped in February 2026. Mirroring its critical and public reception, the album achieved uncommon commercial success for a video game soundtrack, reaching multiple top chart positions in various countries, with concert tours selling out some of Europe's largest arenas.

The extended play, released on 12 December 2025, consists of 6 additional tracks featured in the "Verso's Drafts" playable level added as part of the game's free 1.5.0 "'Thank You' Update", formally revealed after it was named Game of the Year at The Game Awards 2025.