The Nightmare of Druaga: Fushigi no Dungeon[b] is a roguelike dungeon crawler video game developed by Arika and published in 2004 in Japan by Arika (under license from Namco) and in North America by Namco Hometek exclusively for the PlayStation 2.

Set in a fictionalized version of ancient Babylon, the story follows Gilgamesh (shortened to Gil) in his journey to save his fiancée Ki from the evil sorceress Skulld.

Town sections are free-roaming areas where the player can purchase items, upgrade equipment, and accept side-quests, as well as talk with townsfolk.

These dungeons contain randomly generated items and monsters, and advancement initially requires the player to find a key on each floor and bring it to the exit.

Subsequent visits to the floor allow the character to break down the locked door at the end, leading to a secret level with rare items and tough foes.

Much like The Tower of Druaga, the game contains some foes which are far too powerful for the player to fight initially and they must instead be avoided.

Weapons and armor change Gil's speed relative to the foes within the dungeon as well as altering the range of his attacks, lending a sense of strategy to equipment choices.

The game is known for its relatively unforgiving difficulty, as death in the game results in the loss of nearly all items and half the player's gold, though a small amount of items can be specially marked in Ishtar's temple so that they remain with the player upon death.

[5] The evening before the ceremony, Ki is captured by an evil sorceress, Skulld, who takes her back to the Tower of Druaga.

Ishtar reveals that Babylim was in fact destroyed when Gil brought down the Blue Crystal Rod from the Tower of Druaga.

Gil returns to the Tower of Druaga and recovers two of the pieces of the Blue Crystal Rod.

Gil discloses to Succubus that he has seen through her plan, and insists that she relinquish the third piece of the Blue Crystal Rod.

He has determined that humans should create their own happiness without the gods' help, and resolves to return the Blue Crystal Rod to Anu, atop the Tower Between Heaven and Earth.

At level 20 of between heaven and earth, the dungeon Gil goes through to return the crystal rod to Anu, he defeats a giant slime boss reminiscent of the dark ruins, at level 40 destroys another set of chronos orbs ala caverns.

Gil returned the rod, to Anu's displeasure, it seemed, and he had little confidence in humankind's ability to manage themselves without the gods' involvement.

GameSpot called it a "dungeon hack of the most boring kind", noting poor graphics, plodding gameplay, and forgettable music.

[12] 1UP.com's Jeremy Parish praised the game's music and interface, stating that for those who enjoy roguelikes it's "easily one of the best", though fans of typical console RPGs are "going to be absolutely miserable".

[13] The game sold about 43,000 copies during its debut week in Japan, making it the fourth best-seller in the region at that time.