This research attempted to create the historical context of Southern Taiwan in the late nineteenth century based on the martial art novel "Xiao-Mao" (Pussy) by designing a role-play digital game "Taiwan Epic Game" about the war time; in which, Taiwanese history, geography, and culture are presented in an innovative way with virtual scenarios. Questionnaire surveys were conducted to investigate the effects of the digital game. The simulationist immersion premises were chosen to be the primary concern, with which the designers should pursue the supreme creation of situation, character, setting, and system. The results showed that the game can effectively enhance players' cognitive growth, as well as cultural awareness in terms of the sense of existence of the environment, local culture, folk arts, faith and festivals, and architectural characteristics. It can be concluded that the three-dimensional simulated learning environment created in the digital game can successfully merge "reality" and "virtuality."