Two friends discovered a strange chest, and when a bright light emerged from it, they were transported to a magical universe with no obvious way back. Inside the castle at its center, the sinister wizard Nefatex appeared with a condition: if the player wants their friend Jenny returned, they must fight through all five magical worlds and defeat him in a direct duel. Castle of Magic is a mobile platformer with environments that defy conventional physics—levels include sections where the character walks on ceilings or flies through exotic biomes.