“Don’t split the party!” is a classic refrain from the early days of D&D that still holds a surprising amount of traction. It’s also absolute rubbish; your games will be much more fun if the group separates and gets back together during the course of an adventure. This is especially true in investigative games like Vaesen or Call of Cthulhu – but even in your classic F20 game it can lead to much richer play. Here’s why.
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If you’ve got two potential leads out from a scene, why go to each in turn? Send a couple of PCs to talk to the old woman, while the others poke around in the merchants’ quarter. By cutting between them, you get a nice contrast, and it’s easier to be an audience for the other pair when things are being resolved by the others. Things move quicker with fewer PCs on the scene, too.

More (In-Party) Roleplaying!
Four PCs in the same place, talking to someone – they might talk to each other, but the focus of their investigation is going to get more of their time. Two PCs in the same place, it’s much more natural for them to talk to one another – and it will happen more. This is especially true online, where a conversation between more than two people needs structural help to avoid talking over each other.
Mix up the pairings a few times, and you’ll soon get some neat character interactions going. If you’re doing this in a very trad game, or as a one-shot, you might want to lay the groundwork for this with some in-party setup questions.
More Verisimilitude!
Another cliche from the early days of roleplaying is the Cthulhu investigator team – six men with shotguns showing up in the suburban street to talk to the little old lady about her neighbours. In genre fiction, it’s very rare that the whole ensemble cast go together to resolve a problem – this is reserved for the finale (and maybe the start of the episode).
If you’re looking at a one-shot structure like the Ur-Plot, it could be as simple as the middle bits are with the party separate – you’ll end up with a grabbier plot, that’ll move faster and cover more in-party chat – all for the good!
How To Make It Happen
First, let’s make sure we’ve got the conditions for this to happen. You need to banish any sort of adversarial “the-GM-is-out-to-get-us” mentality from your players – which means, try and not give them the obvious potential risks from splitting up. Eventually, you probably want to throw that ambush – and the subsequent rescue – but to start with you probably just want peril to be the consequences, not actual character death.
Keeping the PCs in contact – with cell phones or the fantasy equivalent – should also make them more comfortable splitting up. Eventually, you want to remove these and cut them off, but that will only be effective as a change from the norm, so keep that in reserve for the first couple of times.
You can also put a timer on it – if there’s only 3 hours until the next killing has been foretold, and there’s two temples to search for the anti-ritual, there’s a big incentive to split up and cover both places.
Getting Into Trouble
I’m certainly not advocating that when the party is split up it should be peril-free; the scenes should be exciting and dangerous, or what’s the point of them. But the peril doesn’t have to be combat. Skill checks or challenges (even longer-term ones) work just as well with 2 players as with 5, so plan some of these for big payoffs.
There’s a knack to getting spotlight right with this – you don’t want one group making a single Persuade check while the other has some multi-layered challenge to resolve their scene – but you can always give the successful Persuaders something else to do.
And, combat doesn’t have to be off the table. Balance it carefully, and make sure there’s an objective behind it – one group getting ambushed or captured and having to be rescued makes for great drama. In games with tight combat design (like D&D), 2-PC combat does some really interesting/weird things sometimes, which can make it exciting and dangerous even if you adjust the opposition’s level challenge.
For any action-based challenges while the PCs are split up, and even for investigative scenes, smash cut between the two groups frequently – try to aim for cliffhangers, even if minor ones. Techniques like this keep the momentum going, and help players be good audiences for their other group – which spares you having to do an awkward roleplaying scene later where they tell each other what they’ve just found out. It’s unnecessary – they already know – so encourage them to cut to the analysis of their discoveries, not the reporting.
Even in the Dungeon…
A lot of this advice has been focussed on investigative games, but I should say it all applies just as much to more traditional fantasy games. How often do parties in F20 games send the rogue first to scout out the next room, and how often do they actually get separated? Take that as the consequence of a failed perception or find traps roll, and you’ve got an extra layer to your dungeoneering.
Have you ever split the party? Are your players reluctant to do so, or do they just need a bit of a push? Let me know in the comments.