Ewoks: Attack of the Pod Races

From the Introduction: Ewoks: Attack of the Pod Races is a storytelling RPG, inspired by the Og RPG, in which players were only allowed to communicate with a limited vocabulary. The players play cute adorable little furry things, who can only communicate in grunts, chirps, pantomimes, etc. Other communication-hindered genres are possible, including zombies, survival horror in space, and chaste monks.