Astaeria is a "first-person poetry visualizer" by Emma—select a poem, and an abstract world of colors and shapes blossoms around that poem, with procedurally-generated music.
The game comes with eight poems, from Samuel Taylor Coleridge's Kubla Khan to Sylvia Plath's Lady Lazarus, and the music is arranged by composer Matt Read. It's a wonderful ambient experience for any poetry fan, or for anyone who likes to imagine that a verse can be a place, that a word can be a tone, a note.
You can get Astaeria on PC or Mac for $5.99.