Problem Setting

About two years ago, my life didn't allow free-time for reading fantasy literature and playing role-playing games. I miss it - I want to play D&D again.

However, life outside of gaming is still hectic, so I find it hard to pick a time and date for a gaming session in the future and stick to it. Thankfully, a cousin of mine (who actually introduced me to D&D in the first place) is also coming off an RPG hiatus and interested in forming a new D&D group. We've come up with the following way to solve this problem...

My GM-ing Idea

On any given gaming day, at least one of us will have the mental capacity to be the group's GM. So, our tentative plan is that unless we are absolutely certain of our schedules, we both prepare game plans prior to each gaming session. Come the gaming day, we privately decide who is more prepared and that person has the honor of being the GM that session: who is the GM is a game-time decision. The other GM would play their character.

Our group is generally fine with minor continuity issues arising from the author of the campaign's story changing randomly - in fact, our proof-of-concept mini-campaigns reveal it adds some much-appreciated comedy. We think that an "off-duty" GM playing a character is not game-breaking, since that GM is not aware of the other GM's game plans. We'll both GM the same campaign - same setting, same characters, same physical stuff - but the story-line and social developments in the campaign will inevitably come out differently than if one of us was a consistent GM.

Would it be easier if the "off-duty" GM plays the same character, so that character is always present in the group, or different characters? What bad experiences do you all have (that you know how to avoid) with randomly alternating GMs?


4 Answers 4


Use split characters.

Different players will want to play different characters, which different choices. Whether its character creation (race, class), leveling (specialization, spell list), role-playing (aggressive, shy), you will want to do different things at different moments.

Eventually, one of you will do something that the other won't agree with, or will not play as they prefer to avoid offending someone. That makes the game less fun.

If you're worried about keeping up in terms of loot or level, when one of your characters levels up, the other off-line character also does. When you receive part of the loot, the other also does. This keeps both of you on par with the rest of the party. Being GMs, you can also compensate for inequalities (if any do arise) by clever loot or specific encounters.

The biggest reason to split characters will be 'player mistakes'. Let's say you are playing your shared Wizard. You play it safely, invest in offensive spells. The other guy is more reckless, and while you're DMing, he doesn't notice the obvious trap ahead, gets poisoned and shot to death by kobolds. Your character just died due to the other guy's mistakes. This can create a bad tension among both of you, as one feels frustrated and the other guilty (or not sorry at all).

As an example, I had a skeletal NPC once, Brooks. He didn't need to breathe and my players eventually went to explore an undersea sunken ship. The barbarian's player was moody and there wasn't much for the barbarian to do (no diving suit for him). So, I thought of giving him control of Brooks for this mission and go from there. The player nearly killed my NPC just from being pissed at low-rolls and crap loot, trying to use excuses as lawful good nature to have him nearly suicide to bring back skeletons of dead sailors. Despite just being an NPC, I was kinda mad at the player. Imagine if that were an actual character I'd put hours into, instead of just some NPC based on a manga. Btw, eventually we talked, worked things out, and he apologised.

There isn't usually any issue with alternating GM if they agree on a set of base rules.

Aside from the character-sharing issue, there should be no problems if you communicate properly. If you create something in your world, the other GM cannot just drop a meteor on it and destroy it. If the other guy designed a system of Deities with specific hierarchies, you cannot just create a supreme God that overrides them all. As long as you communicate the base rules of your world, there should be no issues.

Other problems that might still appear depend on the items given to the party as loot. Specifically, weird random strong items like the Deck of many Things, or the Wand of Wonder, can break games. You can either also discuss loot, or simply forbid the use of some items when it is your turn to GM.

For example, a friend is running a World of Warcraft-based campaign. In a night where he couldn't make it, I ran a one-shot based on D&Diesel and gave my players a baby steampunk-dragon. The dragon acts as a familiar now, as a pet from levels 5 to 10, as a mount from levels 10 to 15, and as a young dragon from levels 15 to 20. At least that's what I imagined. My friend, the original DM, wants no damn dragons in his campaign. It will ruin his plot hooks, plus make balanced encounters tougher, plus WoW dragons are vastly different from D&D ones. So he just banned the creature while he DMs. Players can use it when I'm running one-shots, but the rest of the time, the dragon just rests in the inn waiting for us.

As for world rules, I'm also alternating DMs in another campaign. To avoid world-rule intersections, we are having lots of dimension shifts from one to the other, so that each dimension has its own setting. On one, it's the usual fantasy D&D setting. On the other, we are in a broken world, where the earth has been ripped asunder with the fury of the gods. Once in a while, we also have a sort of flashback, where we run a one-shot on the other dimension as if it were just an old memory we were reliving.

  • \$\begingroup\$ I'm familiar with this system as an "Adventurers' Guild," though I don't know how common the terminology is. The premise works pretty well in my experience; having a "pool" of available characters to play based on the quest and how you feel that day helps keep things fresh while being versatile enough for changing DMs or numbers of players. \$\endgroup\$
    – JBC
    Mar 29, 2017 at 17:11
  • \$\begingroup\$ I really like your reasoning for using split characters - earlier, we considered a magical "Jekyll and Hyde" situation that would take care of the different race / class / leveling / role-playing, etc. parts but now that you bring it up, that doesn't address the risk of a GM making a fatal mistake. I'd prefer a more personal example of a bad experience with alternating GMs; I think a personal story generally teaches me more about the hidden flaws of a GM-ing style than "just choose some base rules and you won't have problems" - don't blame you for not having an elaborate story ready, though :P \$\endgroup\$ Mar 30, 2017 at 1:56
  • \$\begingroup\$ @VladislavMartin Done \$\endgroup\$
    – BlueMoon93
    Mar 30, 2017 at 9:36

A buddy of mine did this back when we were in the military. We had a huge three-ring binder (this was awhile ago) that we kept all of our notes in.

It allowed us to alternate and pick up/leave off where the previous GM ran. It actually worked out really well for us since we had desperate schedules.

My only cautionary piece of advice would be to ensure that alternating DM's can metagame player vs. character knowledge out of things.


For the character question, it depends some on how consistent you need your party to be. If the other players will always be playing the same characters in a consistent party, then it does matter some that the party be stable. If you two can agree on a character, then sharing it is an elegant solution.

Another might be for each DM to have his own character, and both of them to be with the party always. The character corresponding to the DM of the day could be played as an NPC, or by another party member. I'm running a campaign for my sister's kids and some of their friends, and people don't show up consistently. We just keep the same party of characters, and if a player doesn't show, his character gets played by someone else (other party player, visiting person, me, whatever).

Another option would just be to be more fluid in setting. In college, we had several rotating DMs. We all had multiple characters. It was a shared world, where each DM had his own continent to run. Some NPC wizards set up a network of teleportation spots between major cities, and whichever characters of whatever players were present could travel to where the adventure of the day was happening.

As long as the DMs agree on the houserules and homebrews, and have similar enough styles of play and levels of magic, it's not too hard to work it out.


Have you considered Troupe-Style Play? Wherein the co-GMs could play secondary characters/henchmen who are helpful but of lower power than the PCs. I once did that in a vampire game where we co-GMs played ghoul characters (there were three of them in the party's entourage). This allowed for the plot to advance and keep the focus on the "main characters" yet have us provide some very useful services to the party, yet without every being the focus of the adventure/story.

  • \$\begingroup\$ I've considered something similar; a prototype idea we had was to play expendable NPCs that would every now and then be enlisted for help by the group. The problem we found with any PC that is either less important to the group or less powerful than the rest of the group is two-fold: 1) we already know what it's like to build a PC and get attached to it, so this feels like a step down, and 2) it made our players feel like we were just placeholders, so it was hard for them to take us seriously in important player decisions - us GMs didn't like that feeling of dejection. \$\endgroup\$ Mar 31, 2017 at 17:35
  • \$\begingroup\$ Never said it would be easy, it's not. But it is a good way for you, a co-gm to get to experience the world and even provided some added knowledge to everyone from a back seat, without being the star. (Think Gandalf at the start of LOTR). \$\endgroup\$ Apr 6, 2017 at 19:44

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