Note: This list is only for Tales games released in North America up to this point. There are also potential spoilers for any game on this list.
15) Tales of the World: Radiant Mythology
Radiant Mythology is more of a spinoff of the Tales series rather than a mainline entry. Although there are two more Radiant Mythology games in Japan, this is the only one the west ever saw.
For the first time, players were able to create their own character and could customize stats, appearance, weapons, etc. There’s a heavy emphasis on players interacting with characters from across the Tales series, and you can build your party from any number of them. Characters from games, like Symphonia, Abyss, Destiny, Eternia, and more make appearances.
Your avatar is tasked with trying to save the world of Terresi from a “devourer.” The main story doesn’t really come together cohesively, though, and the focal point of the game is definitely seeing characters from across different games interact. Radiant Mythology definitely has replay value, but nothing in the game, including story and combat, feels as tight as a regular Tales entry.