Mahjong Mysteries Ancient Athena 3D (Europe) (En, Fr, Ge, It, Es), 東海道四谷怪談 3D (Japanese title name) is a 3DS game developed by Arc System Works and published by COSEN. It is a mahjong game set in the world of Ancient Greece, where players take on the role of a young archaeologist who must solve the mysteries of the ancient world. The game features 3D visuals and a variety of different mahjong puzzles. Players must use their wits and strategy to clear the puzzles and progress through the game. In addition to the main game, there are also two extra modes: Puzzle Mode, where players can solve puzzles at their own pace, and Challenge Mode, where they can test their skills against the computer. Mahjong Mysteries Ancient Athena 3D (Europe) (En, Fr, Ge, It, Es) is a unique and challenging mahjong game that will provide hours of entertainment for fans of the genre.