Brave Mouse Cartographer Trilogy is a triptych of ambient systems to be enjoyed either on their own or as the basis for a community-based cooperative mapping game. Participants work together, taking turns playing the role of mapmaker as the group tries to chart on paper the contours and contents of a wide and mysterious continent. This is all viewed from the perspective of our small, brave hero, clinging dearly to the back of a great bird, flying at random according to its own unknowable whims.