Mole's World is a free community-simulation browser game for children developed by Shanghai Taomee Network Technology Co. , Ltd. in 2008. It ceased content updates in 2014, though its servers remain online. The game was announced to restart development in 2019, and its mobile version launched an open beta in 2020. Primarily designed for children aged 6 to 14, it has also spawned spin-offs including animations, and comics.

Long ago, both Rams and Moles lived in the Black Forest, dwelling underground and leading happy lives. However, 28 years later, a massive fire destroyed the Moles’ beloved home. The Moles fled to the shore of the Mystic Lake and began a new life. After leaving the Black Forest, the young Moles grew and worked alongside their dearest little sprites, living joyfully on this new land. Meanwhile, preparations were underway for the birthday and coronation ceremony of Princess Momo, the only daughter of the Mole King. As the day of her ascension drew near, Sera, who possessed the body of a young Mole, protected Princess Momo and infused his own power into her, successfully helping her awaken and become the True Monarch. Peace was restored to Mole's World. Yet in this tranquil life, the manor came under destruction from the evil wizard Kula. Thus began the great struggle between justice and evil.