Final dungeons are the last and usually hardest places that the player must clear in order to reach the final boss. Usually in the Dragon Quest games, after clearing such dungeons and defeating the last boss there are no more enemies to fight until the credits roll and The end screen pops up.
List of Final Dungeons
Dragon Quest II
Dragon Quest III
Dragon Quest IV
Dragon Quest V
Dragon Quest VI
The last trial in this game is Mortamor's Dreadlair; the large castle standing at the top of a mountain across the Sea of Nothingness in the Dread Realm , which as its name implies is the home of Mortamor. Navigating the lair is tricky since it comes with tough monsters, arrow panels, bouncy platforms, misty mazes and even unstable doors that seem to lead to another dimension.
Dragon Quest VII
Dragon Quest VIII
The final dungeon in this game is the Black Citadel
Dragon Quest IX
The Realm of the Mighty is what became of the Realm of the Almighty after Corvus took control of it. It's a nightmarish floating tree dungeon with broken rainbows and organic parts, namely yellow eyes and pulsating pimples. At the top of the tree, there's a small palace at the top where Zenus once governed. The last floors of the dungeon are filled with an acid-like substance which damages the hero(es).
Dragon Quest Monsters: Joker 2
The final dungeon is the Necropolis, where the legendary warrior Leonyx is imprisoned. It's some dark ruins with ancient mechanisms and teleporters. The deepest floors also have lava, and behind the place where Leonyx lies is said to be the entrance to an entire new world.