Dark is a monster attribute in many of the games in the Phantasy Star Online series. It classifies monsters as dark creatures that are unnatural, alien-like beings to the area or planet that they roam.
Dark monsters are typically either spawned directly from Dark Falz or they were once human or animal that became infected by the dark god and grotesquely mutated to serve as his unwilling minions.
Dark monsters are alien-like beings that were spawned from Dark Falz in Phantasy Star Zero. They are 1 of the 4 monster attributes that characterize the enemies in the game.
Dark attribute creatures are mainly confined to the mysterious Dark Shrine encountered toward the end of the game. Since all creatures have a chance of appearing in the Eternal Tower, the area is not included in the list.