Playground is the affiliate program for the popular social gaming app Slotomania. Players can buy credits but it is not considered gambling since the credits are for play only. The game attracts a lot of users and I'd expect it to covert especially well for newer players or players who are reluctant to make deposits at real-money casinos because of the social aspect. The game is offered on multiple platforms and in multiple languages. They're offering a promotional revenue share of 80% for the first month, 60% for the second month, and 40% for the third month and since the credits are play money, there is never a negative balance.
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Promotional revenue share: 80% in first month, 60% in second month, 40% in third month
Revenue share: Tailored.