I paid for the game, and I enjoy it. The game is free on Mobile because it contains ads, but you cannot put ads on a PC game.
Developers need to eat, you know. So, they need the money. Also, the game is really cheap and has a 20% discount right now.
As I said, I paid for it, in order to download it. :p
Although I play mostly on the Steam version.
If you don't want to pay for the game but you want to play it, play the Mobile version on your phone, or on Bluestacks. By doing so, you'll support the devs by viewing shorts 5 seconds ads between each round. Keep in mind you won't have as much cosmetics as on PC, unless you pay for them. You can also remove ads on Mobile by paying 4$, which is the same price you would pay to have the game on PC.
But don't pirate the PC version. You're not supporting the devs by doing this.
Please. Do not compare your "games" to Innersloth's work.
I'd have you know that most of the people that are making their games free on Itch.io have a Patreon. So, while you technically don't pay for the game, they still get paid by people. Either that, or they don't make enough money by Patreon, so they make their game free because it won't be worth for them to make it paid.
You're not generous. You just don't make money from your "games". The comparison here is absurd.