How to Quit on a Game Project

How do you know when to quit on a game project that you're developing versus giving it extra love and attention? I think the more practical answer for people working on their games is just you need to get feedback from people that are not game developers. Put out a trailer or something and just put it on YouTube. And give it to the masses and see what the feedback looks like which is very painful but it can save you a lot of heartache in the long run. It's a difficult question with spelunky one it just there was a point where it just felt like there wasn't any point in adding anything else and. So there's no reason to go on to the port,