After being married my game time dropped somewhat to spend some quality time with my wife on some nights, but it wasn't a huge hit to my game time.
Then I had a kid. He's 13 months now and where I used to have some nights where I didn't play, I would have other nights I was able to get in 4-6 hours of solid play still. Now I am lucky if I get an hour or 2 to play on my "game" nights.
Right now it has mostly been work and be away from home for 10 hours of the day, make breakfast and dinner for family, watch kid for 2-3 hours so my wife can have some time away from the kid she has been with all day, and then wife wants cuddle quality time together of at the very least watching some tv together before falling asleep. So I am lucky if during my 2-3 hour stint of watching the kid after work if I can get in a few games of Hearthstone. That is if my kid decides to sit in my lap quietly while I play the game 1 handed. Otherwise I'm stuck more or less entertaining him so he doesn't just cry constantly or preventing him from doing stupid this to either destroy items or hurt himself.
That's the work week. On weekends, since my wife doesn't get to go out (according to her) during the week, she has to have us go do something on the weekend. Which tends to usually be window shopping and I'm more or less walking around all day and having to play cop on the purse strings so she doesn't spend money on stuff we don't need. Usually I do well, and we don't spend much except what it costs to eat lunch out. Problem is lately it is birthday season for my family and people we know so we've been to 5 different birthday parties in the last 7 weeks. Which means buying gifts for kids that aren't mine.
So because of my lack of time I can dedicate to games, I pretty much stick with Hearthstone or Heroes of the storm as I can knock those out fast without too much dedicated time to them.