Dragon castle

In a once-prosperous kingdom now cursed by dark magic, a king unwittingly encounters a malevolent entity disguised as an old man- who curses him and spreads an aura of corruption and disarray. The curse warps the kingdom, turning good people and creatures into hateful, fearful weaklings with no power, while bad individuals and beasts are becoming corrupted. At the heart of the curse lies a powerful dark crystal, formed from the fossils of ancient evil critters- which fuels the entity's power.

A prince returns to find his kingdom in ruins and the people changed. To break the curse- he must travel to an evil land where the crystal source lies- protected by dark creatures. With the help of magical creatures, the prince must find a way to protect himself from the curse and build an army to confront the entity. The key to defeating the entity is the dark crystal shard necklace it wears, the prince must destroy it to strip the entity of its power and save his kingdom from eternal darkness.