Planetarian ~ The Reverie of a Little Planet ~ – Visual novel, designed for a single passage. This project is made in anime stylistic, which is displayed in the appearance and drawing of characters appearing on slides with static pictures on the background. The brainchild of the KEY studio has become another part of the franchise, which has been known around the world for more than 20 years. For promotion in the plot, Gamer receives all kinds of awards from the list of achievements. In total, 19 of them were prepared, most of them are issued when choosing certain fateful decisions. The nonlinear narration will change depending on the will of the user.

The storyline, filled with love, drama and philosophical thoughts, occurs in the distant future. Humanity lives in the post-apocalyptic world, which dies and practically does not leave a chance of surviving all living things on the planet. People tried to leave the land thirty years ago, but colonialist ideas crashed. The gamer tells the story on behalf of a young guy relating to the “Junkers” – people who collect values ​​in ruins. One of these sorties ended for the protagonist by finding an abandoned planetarium, where one of the workers was preserved-a robot service named Hosino Yumemi. The main task is to search for materials for the repair of the projector, and other storylines appear around this.