Wednesday Boy
The Nerd WhoFell to Earth
My preference is to continue the session as long as two players show up. For those who don't show up their characters are on a side quest if there's an easy way to write them out of the session. If the group is at a point where the character couldn't reasonably go off on a side quest (e.g., half way to Mount Doom), their character fades into the background. They aren't affected by anything but they're assumed to have experienced whatever the group experienced so they can easily jump back into the plot for the next session.
Sometimes if the missing player's character is very integral for the plot we'll create a side quest or a flashback for the characters who are present, just so we can keep playing.
It's hamfisted and I can see how it could break immersion for some people but it lets the people who show up still get to play and since we're all busy, employed people with families we're understanding and do our best to accommodate our various schedules. (And we don't penalize the missing players' XP or share of treasure or anything. For us not getting to play is enough of a penalty.)
Sometimes if the missing player's character is very integral for the plot we'll create a side quest or a flashback for the characters who are present, just so we can keep playing.
It's hamfisted and I can see how it could break immersion for some people but it lets the people who show up still get to play and since we're all busy, employed people with families we're understanding and do our best to accommodate our various schedules. (And we don't penalize the missing players' XP or share of treasure or anything. For us not getting to play is enough of a penalty.)