I don't quite understand the rules of this one, but I think it might be based on the one called: "Can we cross your golden bridge?" though heavily adapted, of course.
I don't know whether you can make it out from the picture there, but the ages of the children who were actively involved in that particular completely child-led game which was completely free of adult intervention, ranged from 18 months up to 15 years. All playing on an equal footing. All being treated kindly and fairly. All thoroughly enjoying themselves and with no coercion involved whatsoever.
I think that's one of the things I love most about home education.