Arsene Lupin - Once A Thief is a narrative-driven adventure that follows the legendary gentleman thief in the early 20th-century Paris. Players solve puzzles, outwit guards, and uncover the origins of Lupin's exploits while engaging in stealthy heists and witty dialogue. The Switch version features full HD graphics, local co-op, and a dynamic day-night cycle that affects enemy patrols. The game is praised for its atmospheric storytelling and clever puzzle design.