I have to say something about this paywall system.
Personally, I don't find this approach particularly wise, at least not at this point.
when a game has been established for a while, maybe. But at this point? I like the game, and if it would develop reasonably, I would be willing to pay for it. but I always find it difficult to decide something like this at the beginning, this site is full of good (even much better games) whose development was suddenly abandoned.
Like some others here I don't want to invest money in projects that will be discontinued after a short time. Unfortunately you don't know that from the beginning, and often you pay for months and wait for updates that don't come... Of course I understand since a developer wants money for his work, I also do not work for free. But I find this paywall principle unfavorable. Additional content for supporters release is completely ok, but in the game then this paywall to display is unnecessary, it spoils the game fun for me, because you always have the feeling what important to miss, This may not be so, but it bothers me violently, and leads me only to ignore it in the future and will not play more... I think it will be similar to some, and maybe the developer should think of another solution. Just a thought, but perhaps worth considering.
Good luck!