Clair Obscur: How a passion project became 2025's most talked-about game3 days ago Share Save Mel Ramsay & Tom Richardson BBC Newsbeat Share SaveSandfall Interactive Clair Obscur: Expedition 33 has been receiving rave reviews across the boardIn 2020, at the height of the Covid pandemic, Guillaume Broche was like millions of others around the world. That would become Clair Obscur: Expedition 33 which, five years later, has become a sensation. Expedition 33 is set in Lumiere, a fictional world overshadowed by a huge monolith bearing a glowing numeral on its face. Guillaume eventually left Ubisoft and formed Sandfall Interactive to work on Clair Obscur full-time from its base in Montpellier, France. Expedition 33 has also been widely praised for its production values - rivalling those of games worked on by hundreds, even thousands of staff.