The game's main character is the warrior T-Rex, a massive, powerful creature. He is the king of his universe. His kingdom is threatened by the evil Nightmare King. T-Rex and his army will have to fight against the enemy.

The gameplay is based on a combination of action and RPG elements. The player will be able to select from a wide variety of characters, including the mighty T-Rex, his knights, his dragons, and other warriors. They can also choose from different weapons, such as swords, axes, spears, bows, and others. In addition, the player can choose to play as the king himself, in order to defeat the enemy and save his kingdom.