EX Dungeon

EX Dungeon is a type of a difficult dungeon available after completing the game in some titles in the series. They are meant to test player's battle abilities with strong opponents, many of them being cameos of playable characters from previous entries in the series.

Tales of Graces
The EX dungeon of Tales of Graces is the Zhonecage, a maze inside the Foselos. The Zhonecage contains ten boss battles, some of them being the non-playable characters of the game, playable characters from other games in the series, and characters story-tied with the EX dungeon; this group is known as "Terma Ten." All enemies in the Zhonecage are subject to steady stat increase which can be decreased by defeating the enemies and using special devices which drain enemies' power.

Tales of Xillia
Magnus Zero is the EX dungeon of Tales of Xillia. It is a mish-mash of various locations of Rieze Maxia and Elympios, and the domain where Golden Mage Knight exists.

Tales of Xillia 2
The Illusionary Darkness is the EX dungeon of Tales of Xillia 2. Ludger Will Kresnik and his companions are tested here by two Great Spirits, Shadow and Verius. Only Ludger and characters with affinity level of eight or above can enter the Illusionary Darkness.