We designed a TAVG (Text-based Adventure Game) for the IP of Cthulhu Mythos. It is a shared fictional universe with a series of horror novels based on a fear of unknown and unknowable. The Cthulhu culture is so prevalent in Europe and has such a strong fan base that many famous movies and games draw on it. Part of us wants to introduce Cthulhu literature to Asia. We designed a story based on this culture with three different storylines. Each of the lines tells with a unique perspective of the information, meaning to say to people think a thing from different angles. The end of the story also advises people to cherish those around you. We built the game with three forms of innovation puzzle games. To set in the story background, we use printmaking style and parchment element as performance. And we designed the user experience to fit the mobile user. We published it on android and IOS platforms and participated in some competition to improve our game.