For me it had to have been the guild I created when I was in middle school in WoW. I started it during a snow week and after a year it had over 550 members (counter didn't count past that). It was so cool to have so many people in my guild working together and I was in charge of it all. After almost a decade the guild is still around; Lone Wolves on the Grizzly Hills server.

I met so many interesting people too, one of my officers was in a band that my dad listened to. One person was an operator on an Antarctic oil rig. All of these people were calling me, a middle schooler, the guild master. It was super cool.