This statement caught my eye, and I thought it was worth a thread of its own, rather than derailing the original one:
I’ve never run more than a single campaign at one time. For those of you that do, how do you handle this? Multiple campaigns set in the same world? Possibly even coexisting and with the potential for the campaigns to influence each other? Or going with completely different genres to keep things straight in your head?
Tell me about it!
I always use my own homebrew world and Multiverse, so that is not really an issue. Game 1 and 2 are set roughly at the same time, though they are thousands of miles apart on the map. Game 3 is set in the far past of games 1 and 2. (The winter games on summer break now 4 and 5 are spelljammer games set in the near future and wildspace of 1-2 and game 6 is in the recent past. This all is fluid as time flows for each game as events happen or don't happen.
In general, week to week, the games don't directly interact much. Though each game does hear the news and rumors of the other games often enough. And everything is connected indirectly, and sometimes more so.
And one player, Charlie, does play in both games 1 and 2, playing two characters that are brothers that don't get along often. As part of his 'campaign journals' he writes letters to and from his two characters.
Every so often a player will join another game for a session or two. Time and Space don't matter much here as magical travel is possible.
Every so often we will do event cross overs, often for holidays or other such breaks. Often on Black Friday or that time between x-mas and New Years when lots of people have free time.
Story Time
Way back when: I worked at the rec as part of the "keep the kids off the streets" group. I had plenty of boys playing RPGs. After a bit a girl, Kim, approached me and wanted me to run a game for her and her girlfriends. After a bit I gave in and so started The Princess Game: bored princess who secretly adventured to have fun and save each of their kingdoms. A bit later I was in line at IGA and the woman behind me noticed my LOTR t-shirt. She mentioned D&D and said her daughter plays that game. We chatted and she mentioned she might want to play the game as her daughter said it was so much fun. I said okay, and a week later Mary had rounded up a couple of other women that wanted to game.
So started MAD, Mom's Against Dragons. A group of mom's playing tough queen characters, very "anti-princess". We game at one of the women's place as she has a huge rec barn and we can drink there. Both games go on. As it turned out Mary was Kim's mom...small world. They don't really talk about it much to each other, for whatever reasons.
We get to the end of the school year, and the end of The Princess Game. They finally confront the lich lady who has been the cause of most of the problems from game 1. It is an epic battle....and they loose. Epic fail. They are deep in to lots of drama. Not even close to having any teamwork, stealing the spotlight from each other and worse. The lich laughs manically as it destroys each of their kingdoms making them watch.
Knowing Mary is nearby I send out a text describing the situation and ask if she wants to help. She does and heads over. A paper with the needed game information is smuggled out to her by the fifth column.
The Princess use their Last Resort: a gate ritual that drains their lives. They hope to get a solar to put things right.
I describe the gate opening and out of the Blue Clear Sky........
........................Mary comes in on cue
Kim whines "Mom, get out don't ruin my game!"
Mary just ignores her and has her character....a queen paladin no less attack. Kim is beyond amazed to watch her mom using all sorts of D&D worlds as she attacks the lich lady. Mary, was of course, trained by me everything she knew about D&D....so she knew what she was doing. Mary's character not only took out the lich ladies protections, but rejuvenated the Princesses just enough. They attacked and defeated the lich......barley.
Mary then left as quickly as she came saying "see you at home" to Kim.
A couple months latter, for a special Labor Day Game.....the Princesses got back together to save their kingdoms.....with surprise guest stars MAD. Together they did a bit of timey wimey time travel to save the people of the kingdoms ("our kingdoms are the people, not the land"). For a nice capstone on it all.