Cosmology of Kyoto is a visual novel adventure game set in the historical context of 10th-11th century Japan, specifically during the Heian period. This intriguing game allows players to experience the beauty and complexity of ancient Kyoto from a first-person perspective, focusing on open exploration rather than a traditional linear narrative. Players can wander through the detailed cityscape, uncovering various pathways, buildings, and unique stories that enrich their understanding of the era. The game features a blend of horror, religious, and educational themes, with gameplay mechanics that include karma and reincarnation.

Released on CD-ROM, the game offers fully voiced dialogues in Japanese, complemented by English subtitles in the North American version. Players encounter numerous non-player characters, each based on historical figures and loosely inspired by tales from the Konjaku Monogatarishū. As they explore, players can access an encyclopedia that provides context and background information related to the characters and locations, enhancing the immersive experience of this cult classic.