Kaiyanwang
Adventurer
I once ran a game for 6 players and ended up with 11! I was overwhelmed and under prepared for that many, it was online as most of my games are, and I did the best I could to keep it going, but wasn't able to. I tried doubling monsters but it didn't scale quite right. Best thing, IMO, is to set a number and stick with it.
Now, I limit my games to 6-7 at the VERY MOST, 5 is better for me even still.
Figure out the best number for you as a GM, and stick to it.
I tought I was the only one to be so insane. from 6 to 11 player is my story, too - and the best part? Up to level 40.
I was young and I had more time.
Now I have 6 and 8 in two games. But level 14 and 12.
A thing I like is that you can drop in several scary things and answer to the after-game rants with: "eh, well, you are so many people"..
