No worries, I appreciate curiosity! I'm a curious person too.
I created this in Construct 2.
No worries! I'm sometimes late too. I just now happened to check for replies.
I used to use Godot, but then I had a problem with it that prevented one of my projects from working or even loading anymore, and I couldn't find any way to fix it.
That was a while ago though. Besides that, I really liked it, and might try it again.