So it seems like most people agree with me that $5 is a reasonable price. I'm going to go with that, then. I just need to balance the difficulty and compile a Windows binary along with Linux and I'm done.
Though I wonder if the recent situation on itch will affect any potential sales, even though my game doesn't contain porn and the current situation isn't itch.io's fault because I bet some people are boycotting itch anyway.
We can help each other in gaining visibility for our works.
I can rate Your game, You can rate mine.
When things have more rates on itch, they are positioned higher, more people see them and are interested. OK?