4. Project: Exploding Kittens (Playing Cards) ; Earnings: $8,782,571
Source: Iconosquare
219,382 backers broke a record for the highest number of people to make a business dream come true. Designers Elan Lee and Shane Small teamed with cartoonist Matthew Inman to create this Russian-Roulette style card game. The campaign ended 02/20/2015 making the union of kittens and explosions an actual party game and fund 87,825% of the $100,000 goal.