CIEES is a simple adventure game developed based on Unity, designed for children. The game takes players into a fascinating fantasy world, exploring diverse scenarios such as forests, castles, and snow. The difficulty of the game is moderate, challenging for child players, but not too difficult. The game has a clear objective, and the player is able to easily understand the tasks and objectives. The sound effects and music match the atmosphere of the game, enhancing the immersion of the game. The interface is designed to be simple and easy to use, which improves the smoothness of user interaction. Overall, my gaming experience was very enjoyable, with a tight pace and no frustrating or unpleasant factors.