Act 3 of Expedition 33 in the game Clair Obscur: Expedition 33 starts after you have defeated the Paintress. At the start of Act 3, your character Esquie gains the ability to fly, and the game opens up with all optional content and areas becoming available for exploration. Act 3 can vary in length depending on how much side content you choose to engage with, but if you simply want to progress the story, you fly to Lumiere and enter the final dungeon to move toward the game's conclusion. After this, you can still leave the area and continue exploring. The game Clair Obscur: Expedition 33 was released on April 24, 2025, so players could start Act 3 any time after defeating the Paintress and progressing past Act 2 following its release.