In order to reproduce the beauty of the canal in the Yuan and Ming dyasties and the commercial characteristics of its major cities, we have made such a game, "The Canal Doing Business". Players set off from one end of the Beijing-Hangzhou Grand Canal and sail to the other end to experience the journey experienced by countless ancient merchants in the complete canal scenery. We use the green landscape painting as the tone of the rendering of the picture, focusing on the traditional landscape painting style to show the beauty of the mountains and rivers where the canal is. In the use of artistic processing at the same time, the use of HDRP high-definition rendering pipeline, with real light and shadow mapping landscape, so that the traditional culture of the paper. In addition to the artistic effect, we designed the game for two parallel game modes of boat/business-players driving boats in the third person perspective, not only can feel the boundless nature and river, but also can enjoy all kinds of scenery from the best angle; in terms of commercial trade, in addition to the traditional currency and trading system, we set up a variety of items to buy and sell at different prices in different places, the news of commodity prices needs to be learned through communication with NPC, which greatly increases the gameplay. At the same time, local characters convey commodity information to the characters in dialects, and local merchants sell local specialties, so that players can fully enjoy the happiness brought by market games in the game while understanding Chinese history and culture.