• Boostore, the Carrefour e-commerce site wanted to sign up new contacts for its newsletter.• We were called upon to create a game with viral-marketing potential.Objective:• 40,000 participants, average of the previous games: 35,000• Recruit a minimum of 10,000 mail contactsStrategy:• Offer a quick and easy game, known by all: 'The Wheel of Fortune'.• Increasing the viral-marketing potential with a humouristic slant.• Create a buzz with a mini promotional campaign.Results:• 120,000 players• 49,000 people signed up for the newsletter• 40% sponsorship