The Design Away Carbon challenge is a participatory game focused on incremental adaptation to reduce the carbon emissions of a fictitious city. This game was held at the Future BNE Challenge during World Science Festival held at Brisbane City Hall in collaboration with Relative Creative and Brisbane City Council. The Future BNE Challenge is Australia’s largest one-day educational event with over 650 grade seven students participating in a future-orientated, design challenge. Before the main event, over 200 students played the Design Away Carbon challenge where teams of 10 rapidly created visions of low carbon futures.