Serious games with their educational or skill development purposes besides entertainment, have been used in various fields such as architecture, landscape architecture, urban planning, cultural heritage, and learning of language and culture, easing the data absorption process of the specific topic for the user. The use of serious games in the cultural heritage or cultural landscape, as a subtopic, can have a role in its preservation in addition to the information transition ability. Yedikule Bostans is a serious game designed (...) for cultural heritage, its importance, and maintenance ways. The case study of this article is the İstanbul’s market gardens, existing plenty of them in İstanbul, which have remained since ancient times surviving despite the difficulties of urbanization. This research is focusing on the Yedikule Bostanları with their 1500-year history which are associated with the Theodosian Walls, registered in the list of historic areas of İstanbul in UNESCO. The serious game presented in this research with its immersive text-based time-traveling theme about these gardens aims to attract the public's attention to their perishing danger. Thanks to the abilities of the Twine software used in the game's development, we provide a charming journey to the users throughout the game to increase their awareness of the inherited farming culture and more comprehensively the cultural heritage and cultural landscape, meanwhile. (shrink)