playing this for the second time, I've realised when I completed the angel that it's tracked how long since my first run started I think? (I hit escape and it says it's taken me 2779 hours), which tbh I think is really cool. I just sat on call with a friend for several hours while her games install on her new PC, both playing this side by side and comparing our stats every time each of us hits a milestone number (another thousand of something, etc), we've both gotten way past completing the game but Number Go Up/we wanna see how much we can max out, we're having a lot of fun :)