Cryptopop is one of the alternatives to Candy Crush, but it can be used to make money. In this game you have to match the same symbols to get points. It sounds pretty simple, but as you level up in Cryptopop they get more complicated.
Likewise, you should know that you can earn ETH (Ethereum and Popcoin) in this game. However, the amount of crypto you earn on Cryptopop depends on the amount of advertisements you see.