The project was the theme of the Woodcraft Folk's 2001 international camp in Nottinghamshire where 4,000 young people attended.
The camp focused on sustainable development education and ran activates for children from five to twenty five around the themes.
The game ran for the duration of the camp and involved people working for credits to create a more sustainable world.
The Earth Summit had "action stations" where people debated the issues to be included in the declaration.
[1] The Declaration created as part of the simulation game was presented by a delegation of 11 young people.