No more than one game at a time. I work and the maximum I can allocate for games is 1 hour a day. Depending on the game, it takes me from a week to 3 weeks to complete a full playthrough.
It depents on time of the Year. in Summer i dont play often. maybe one till to times a week. so it takes longer to complete a game. the other time of the year i nearly play daily. so maybe i can complete 3-5 games a year, depending on the length of the game. (talking about games like shooters with story or RPGs not NSFW Games.)
I generally play in the weekends a full update or new game I found, and on the week at night when I have time, or don't want to play normal games or read, as for the amount I have no idea, but I would say in the 100s easily how many 100s I have no idea, but most probably in the higher ends of it if not in the 1000s
Depends on the updates. Sometimes its like 1-5 per month and sometimes more. I like to be up to date so I won't have to download shitload of games / updates.
Once in a few weeks i look for updates and new games then delve for 6-8 hours into them. Longer games can take years to complete.
On the other hand if something really interests me then it is all free time until completion.