Hi there! I program offline games for itch.io because I want to share my games to the public. Feel free to download with no donation.
I make clicker games, collecting games and more. I will try to remake popular games in the future.
Yes, you can play games in your browser but it may require Flash.
Sadly, no. You can't donate me since I'm new to itch.io.
I only make games for Windows because I want people to try Windows first. I will make games for Mac as well in the future.
Unfortunately, I do not know what type of format does Linux run. I will find out what the format is.