For those who write about the price, it's a free Steam key.
I want to remind you that when you bought a game in itch.io, you bought the game exactly as it is (I will not say that the price is ridiculous, as we have some people here for whom $ 1.20 is a lot). No one promised you updates, as the game is already complete. Also, I want to remind you that Steam is not Itch.io and it takes a portion of the profit from sales (30% to be exact and maybe something else for using their tools). Of course, he could have given away the keys to everyone, but I'll remind you that this is his first game that really hype and only it costs money (other games are free). Don't be toxic to indie developers who give us cool games.
The funny thing is that these people then go and buy some Call Of Farting or some other shit for 50-60 bucks and don't complain about the game's problems.