This game was part of an experiment in IF inspired by a challenge to create a work of art with the title "The space under the window". In this game, you see a window, but you can't do anything to it directly. Instead, you type nouns or adjectives you see, and it changes the world to something different, related to that noun or adjective.
I found this game to be pretty short; altogether I think there were less than 40 keywords I could type. Many obvious words were not implemented, but this makes sense for an experimental game.
This kind of concept, whether inspired by this game or not, was further developed by Aisle and then Galatea, both games where the gameplay focuses on typing keywords in a room or a conversation, and text adapts around the words you type. I distinguish this from games like Blue Lacuna, where typing keywords just has you interact with the object.