N Square approached G4C interested in engaging the developer community to address the risk of nuclear weapons. G4C produced a worldwide challenge that sought ideas for games that address this. The challenge was funded by N Square, a multi-funder initiative to end nuclear weapons.
Two hundred forty-two submissions were received throughout the challenge reflecting a wide range of complex representations of the nuclear weapons landscape. A $10,000 prize was awarded to the winner, Yvette Chin. Following the challenge, a complete game prototype was built executive produced by G4C and built by Filament Games.