Yes, I do too) I love your games and you are the first author on this site for whom I could do this, maybe I'll subscribe to your page later) I'll go play;)
I also wanted to know if the next updates of Chapter 2 will also be paid, or if I bought it, then just updates?
All updates to 2 (GutterTrash), both bugfixes and content, will be free to those who've bought it. It's a package deal, you get whatever content is available as it's available. Additional chapters, when they happen, will be their own purchase.
