Chátty is the third entry in System Sacom's Novel Ware series. It was meant to be the second title, but delays during development pushed its release date past that of the would-be third game. Its story is set in the future and involves a man who was framed for a crime he did not commit. In attempt to clear his name, the protagonist discovers a device that allows interdimensional travel, and ventures into a parallel dimension in search for answers.

Unlike the previous Novel Ware game, Chátty is a more traditional Japanese-style adventure, with fewer and shorter conversations and text descriptions. Interaction with the environment and navigation are performed by selecting verb commands and combining them with objects from a menu list. There are no real puzzles, but it is possible to pick up objects, use them, and examine them in an inventory.