Device 6 is a puzzle game wrapped in a text adventure. Most of the story is expressed through text, while sound and an occasional picture are used to facilitate interactivity and add flavor to the environment.
The excellent sense of space comes entirely from the presentation of the text. Chapters begin like a normal book, in which the story is split into paragraphs meant to be read from left to right and top to bottom. Soon the text changes, and it’s no longer organized into paragraphs, it’s organized into shapes that correspond to the layout of the environment. If you’re moving through a hallway, the text is displayed as a single long line, if you’re going up stairs, the text is cut into steps and the screen automatically pans up, or if you reach an intersection, then the text splits off in multiple directions. It’s a clever trick that makes the act of reading unusually physical. The end result is that we have a stronger sense of space than text can usually convey by itself.