I don't know any blockchain game. Would you please give some examples for good games to test and check if you are saying is good for me!
Try eth town.
https://eth.town/
There is also crypto kitties
https://www.cryptokitties.co/I haven't played these games but these are the most popular so far that I know. Integration of blockchain games to crypto is one of the thing that I've been waiting for. Everyone dreamed of playing while earning some bucks right?
The Eth town was no longer exists now, while the crypto kitties still active blockchain games type in this field of business.
But this game requires you to invest first before you become a player to these games, I am pretty much sure for this.
Meaning, nowadays it is still hard for now to play games to earn cryptos without investing any amount of money.