This is a project of great significance. Mobile video games and especially those made on Blockchain will attract a large community, creating good potential for the project. I think the project is both valuable in technology and worth investing in.
Even ordinary players can take part in such a project. If you just play the game, I do not think that you can be considered an investor.
It depends on how you approach this task. I have experience in hardcore gaming and I know that top players spend a lot of money on the game and their game accounts are very expensive.