The World of Mana (a.k.a. Seiken Densetsu) series is a series of video games published by Square-Enix. The World of Mana series is characterized by its use of traditional elementals and other mythological cornerstones such as the Mana Tree (also known as the World Tree in other contexts.) Primarily a series of action RPG titles, developers have experimented greatly with the gameplay of the series, with mixed results. The best known game in the series is the highly acclaimed Secret of Mana on the SNES.