Cryptocurrency earning games have become a popular way for people to earn digital assets while having fun. In these games, players can earn cryptocurrency by participating in various in-game activities, such as completing tasks, achieving high scores, and competing in tournaments.

Here are the top 10 cryptocurrency earning games:

1. CryptoKitties: This is a blockchain-based game that allows players to breed and trade virtual cats using Ethereum cryptocurrency. Players can buy, sell, and breed unique digital cats with various attributes and characteristics. The game has gained a large following and has even been credited with congesting the Ethereum network.
   
2. Axie Infinity: This is a blockchain-based game that allows players to breed, raise, and battle fantasy creatures called Axies. Players can earn cryptocurrency by participating in the game’s marketplace, where they can buy, sell, and trade Axies with other players. The game is built on the Ethereum blockchain and uses the cryptocurrency called LOOM.
3. SaruTobi: This is a mobile game that rewards players with Bitcoin for completing tasks and achieving high scores. In the game, players control a monkey who collects coins and power-ups while avoiding obstacles. The game is available on both iOS and Android.
4. Steem Monsters: This is a collectible card game that allows players to earn Steem, a cryptocurrency, by participating in tournaments and other in-game activities. Players can buy, sell, and trade digital cards with other players, and the game features a ranking system and various game modes.
5. CryptoSpaceX: This is a space-themed strategy game that allows players to earn cryptocurrency by completing missions and building a space empire. Players can explore the galaxy, build and upgrade ships, and engage in battles with other players. The game uses the Ethereum cryptocurrency.
6. Ether Quest: This is a role-playing game that allows players to earn Ethereum by completing quests and defeating enemies. The game features a single player campaign and a multiplayer mode, and players can earn cryptocurrency by leveling up and completing in-game achievements.
7. Ether Kingdoms: This is a strategy game that allows players to earn Ethereum by building and defending a kingdom. Players can collect resources, build structures, and recruit soldiers to defend their kingdom against enemy attacks. The game uses a cryptocurrency called IMT.
8. Ether Online: This is a multiplayer online game that allows players to earn Ethereum by completing quests and competing in tournaments. The game features a variety of classes and game modes, and players can earn cryptocurrency by leveling up and completing in-game achievements.
9. Cryptocurrency Idle Miner: This is a idle game that allows players to earn cryptocurrency by managing a virtual mining operation. Players can upgrade their equipment and hire workers to increase their mining productivity. The game uses a variety of different cryptocurrencies, including Bitcoin and Ethereum.
10. Cryptocurrency Tycoon: This is a simulation game that allows players to earn cryptocurrency by building and managing a virtual cryptocurrency empire. Players can buy and sell various cryptocurrencies, invest in ICOs, and trade on various exchanges to earn profits. The game is available on desktop and mobile.

As with any game that involves earning cryptocurrency, it’s important to do your own research and assess the risks before participating. The value of cryptocurrency can fluctuate significantly, and these games may involve some level of risk.