It's all about your specific neighbors. If they have already complained about noise, you're probably in for some more trouble.

At my house, my games are basically right below our master bedroom. If I'm playing pinball and you go into our bedroom, it sounds like I'm playing in the bedroom. Now I have an unfinished basement so nothing really to muffle the sound, but if you're playing with the volume up a bit, I bet your neighbors can hear you easily especially if you can hear them walking around. I suggest talking with them about it and come to an agreement of when you're going to play. I think 12-8 is more than reasonable, but you never know what you're neighbors are going to be like.

I lived next to someone in a condo complex and there was one shared wall. I had the cops called on me multiple times because she said her walls were shaking. When the cops showed up (both times), I was asleep and the tv was on very low. The cops thought they had the wrong house.