O.D.T. (USA) (En,Fr,Es) (Proto), known in Japan as 'Operation: Darkness Trap', is a Nintendo 64 game developed by the company Atelier Double and released in 1998. In the game, players take on the role of a young boy named Silhouette, who is on a mission to rescue his parents from the clutches of an evil sorcerer. Players must explore dungeons and battle monsters in order to progress through the game. The game features a unique blend of real-time strategy and role-playing elements. Players must manage their party of characters and resources in order to survive and advance through the game. Combat is turn-based, with players controlling their characters in a 3D environment. The game also features a day-night cycle, which affects the strength and type of enemies encountered. O.D.T. (USA) (En,Fr,Es) (Proto) has been praised for its unique combination of genres and its challenging puzzles. The game also features an innovative story-telling system, allowing players to choose how they progress through the game. The game has become a cult classic, and is still popular among fans of the genre.