Can the main game developers choose any other of the existing blockchains for their development?
Some developers have tested using Ethereum. But this blockchain is not intended for the gaming industry and has many disadvantages.
Ethereum is experiencing many problems, the main one being scaling.
Therefore, the use of Ethereum in the gaming industry is practically excluded.
Cocos-BCX is the best option for tokenizing games
I hope the developers will begin to test the blockchain immediately after launch and soon we will see games with Cocos-BCX integration