mines can only be placed on caves, and houses and camps can only go on plains. Water wheels only go on rivers. Monumints can only go on previos monumints, unless it is your first. just play around for now, soon I'll add a larger board and more buildings eventauly.
change-log: 5. bug fixes 4. added water wheel 3. added music 2. added monument 1. added detenater
