Crystal Cave [Fairy Tail: Battle of Magic]

— Natsu and Gajeel confront Deliora in Crystal Cave final area
Crystal Cave is one of the area on Fairy Tail: Battle of Magic, a Fairy Tail fanmade Multiplayer Open Role Playing Game project which I create.

Dungeon History
"This monstrous creature only seek for destruction. I have to defeat him for the sake of the world, even if I have to sacrifice myself!"
— Ur

Long ago, Ur the great ice make mage was once sealed an ancient creature of destruction with her Ice Make magic, with the cost of her own life to frost the giant in an undying ice. Time passes, due to some reason, the demon has set free by Ultear's Time Magic for the preparation of Zeref's awakening. Deliora now lives, on a depth of Crystal Cave - challenge anyone who dare to reach his lair until the time his master is finally awaken.


Crystal Cave Preview Screenshots
A dungeon filled with magic lacrima crystals, a creature of destruction; Deliora sleep within the dungeon. Because of Deliora's supreme power, the dungeon is locked and can be entered after player can finish certain quests.

I made the concept for the dungeon was based from a cold and isolated crystalized cave. Crystal Cave is currently the only dungeon in this game which you need to complete some quests in order to unlock it. However, Deliora himself is currently the strongest BOSS on this alpha stage version.
On current remake version, Crystal Cave is become the second hardest dungeon after I announce Dragon's Den as a new dungeon on the game.