I think it depends upon the projects, axie infinity is a good project many gamer like it as it was easy and yet profitable play to earn projects, there are a lot more projects that almost the same with the axie infinity concept and they are also good.i think most of this projects will last long because they give a lot of excitement to the people who play and earn, people now a days really wanted a new way to earn profit and earning while playing is one of the most amazing concept and becoming popular this year and maybe in the coming future.