The Black Wren is a GM-less, dice-less and even character-less RPG in which you play natural or social elements of a rural settings just before it is transformed by a transcendental moment known as The Knell
It's a descriptive game in an impressionist way.
You will need 3 to 5 players in order to play this game, for a session of about 2 hours.
You'll enjoy this game if you like nature, poetry and playing around descriptions.