Hey community, long story short, while searching for a cryptocurrency that could be used for games monetization, I stumbled upon Nimiq (https://nimiq.com
What sets Nimiq apart from other cryptocurrencies? It allows a web game to connect to the blockchain to receive/send transactions directly from the web browser without any third party app or extension. So, yes Nimiq is what I was looking for, because there are no payment processor fees and no middleman.
BTW, if anyone has experience with any of those programming languages feel free to review them and make any suggestions 😉
Also, feel free to ask me anything about integrating the Nimiq blockchain in your Cocos games 😊
Full disclosure: For those libraries currently under review, I'm the author of three of those implementations.