Published by Hudson and distributed in North America by Konami Digital Entertainment Inc., both versions are planned to ship February 12th, 2008 for a SRP of $29.99 each.

In the game for the PSP system, players are trained in weaponry and mystical forces as Warriors of Ancient Arts. On a quest and ready to uncover the fate of a legendary kingdom, gamers will prepare to battle demonic forces and monstrous creatures. Dungeon Explorer: Warriors of Ancient Arts features hundreds of variations of weapons, armor and equipment that can be chosen and upgraded throughout the adventure to defeat enemies. Unique for the PSP system, players have the ability to choose their warfare style with more than 150 different kinds of fighting arts, including Big Bang Arts, allowing three players to team up to triple their destructive power in Ad-Hoc Multiplayer mode.

In the Nintendo DS version, gamers find themselves in a land plagued by a legion of undead, monstrous soldiers. The story takes place centuries after the events of the PSP version, as a legend foretells of a hero who will rise to face the threat. Gamers must rediscover the lost Ancient Fighting Arts of Westria to restore peace to a once vibrant kingdom. With more than 60 different fighting arts across 8 lost Ancient Fighting Art schools, players can become a skilled warrior to successfully wage battle against dangerous enemies such as the Demon God's undead soldiers, mutated monsters, and an army of ancient automatons. The game offers hundreds of weapons, armor and equipment; all can be reworked along the way. Players can also choose from three hero races and three character classes to form a unique warrior for battle. For a group effort, 3 players can join forces to battle the Demon God's minions via Nintendo Wi-Fi Connection.