Everything is well explained there... for average person and sometimes that is not enough. I will give you some feedback on it.Hi! It's all written in the tiers description on Patreon. This month, we published yesterday for First Access, on June 23 it's the Early Access release and on the 27 it'll be the Game Access release. We always follow that pattern.
First your choice of tier names is rather unfortunate. While i understand the idea behind it, some people won't ask themselves the question "what is the difference between different tiers?". They will see "game access" and understand it as "get game now". I think it is better to have abstract tier names so people don't get tier names confused with common meaning of the words.
It is also good idea to have the tier descriptions self contained, meaning it should say how much earlier/later the access is compared to other tiers. So description of "game access" should state "get access to game 4 days after "early access" tier ; week after "first access" tier."
Finally your publicly visible announcement post for 0.11.0 does not state what tier it is available for. It only states "0.11.0 available" and then you have tier "game access" , I hope you can see how a new person can get the wrong idea.
You don't need to apply all of the above, i would suggest just changing the description of "Game access" and "Early access" to state how many days after "First access" the newest patch becomes accessible.