Most of these games are on the older side and are probably making negligible amounts of money. Monetizing your backlog for $0.1 per install when 1,000,000 peopl

Most of these games are on the older side and are probably making negligible amounts of money. Monetizing your backlog for $0.1 per install when 1,000,000 people install your app gives you a lot of valuable funding for your next game. It's also totally distorted because it's free. If the game cost money, it wouldn't have sold nearly at the same level.