Ask around and you will hear the same story about evil campaigns. Everyone had a great session one. Session two was fine. Somewhere around session four it turned into either a knife fight between the players or a group of people standing in a tavern asking what they are supposed to do now.
Both endings get blamed on the players. Somebody went too far, somebody would not commit, somebody made a character who only wanted to watch the world burn.
That is not what killed it. What killed it is that going evil quietly removed two things the campaign was running on, and nothing was put in their place.
The two things you deleted
You deleted the reason to cooperate. A standard party is held together by a shared moral floor. Nobody has to justify saving the village, and nobody has to worry that the Rogue will sell them to the villain, because the genre says they will not. Take that away and there is no default answer to "why are we together". The players will find one on their own if you make them, and the easiest one to find is "we are not".
You deleted the reason to leave the tavern. A hero has quest givers. Someone in trouble comes and asks. Evil characters do not get asked. Nobody comes to the hags for help, so unless you build something else, the campaign has no engine and every session starts with the GM inventing a reason to care.
Everything below is one of those two holes being filled.
1. Give them an appetite
The single highest value change you can make to an evil campaign is to give the party a recurring need that cannot be satisfied by sitting still.
Not a goal. Goals are optional and players negotiate with them. An appetite: something the characters must do on a clock, whether or not it is convenient, whether or not it advances the plot.
In Roll Evil this is the Soul Harvest. Every hag has to feed. The coven takes roughly one soul per hag per day. Meet the quota and you are whole. Take a long rest without meeting it and you are Starved, and your highest level of spell slot seals shut until you feed again.
Notice what that does. Nobody has to be talked into leaving. The clock is already running when the session starts, and the interesting question is never "do we hunt", it is "who, and how quietly". The campaign stops needing a quest giver because the party's own body is the quest giver.
You do not need souls. Anything works as long as it is recurring, physical, and cannot be met by good behaviour. A vampire party needs blood. A cult needs converts. A crew of thieves needs a fence who is losing patience. Pick one, give it a number, and make the number due at the same point every in-game day.
2. Make them one thing, not five things
A villain party needs a mechanical reason to stay a party, because the genre is not going to supply one.
The strongest version is a resource that only exists when they are together and can only be spent once. Coven magic in Roll Evil is one cast per long rest across the entire coven, not one each. Four players, four possible catastrophes, one trigger. That guarantees an argument, and the argument is the good part: it is four people having to agree on what the session's biggest problem is.
If you are not running our book, do this with anything shared and scarce. A single pool of favours from the demon they all signed with. One vote on where the ship sails. A pot of stolen money nobody can spend alone. The requirement is that it is one of something, that it is genuinely powerful, and that spending it needs a decision rather than a turn.
3. Put something above them
The failure mode of evil parties is not cruelty, it is boredom, and boredom comes from having nothing that can hurt you.
The fix is a food chain, and it is worth being explicit about where the players sit on it. In our book they are a middle predator. There is a tier below them, the people they feed on, which is a managed resource rather than scenery: over-hunt a village and it empties, panics, or sends for help. There is a tier level with them: the watch, hired swords, monster hunters, rival covens. And there is a tier above, the elder hags, who do not want the party dead. They want to harvest them.
That last distinction is the one that does the most work, and I will come back to it in a moment.
4. Run session zero like a contract, not a warm-up
This is the boring answer and it is the one that actually saves campaigns.
Before anyone rolls, get three things agreed out loud.
- What the table will not watch. Say it plainly and write it down. An evil campaign will walk into somebody's line by accident if nobody drew it. This is not a mood killer, it is the thing that lets the rest of the game go harder, because everyone knows where the edges are.
- What the coven is for. Not backstories. One sentence on why these five monsters are working together and what they are collectively trying to get. If a player cannot answer it, their character is a solo act and will behave like one.
- The tone. Gleeful and horrible is a different game from bleak and horrible, and both are fine, but a table running both at once produces the session four knife fight. Pick one.
5. Make evil cost something other than guilt
Players will not restrain themselves because it is wrong. They will restrain themselves because it is expensive.
Consequence has to be mechanical or it is decoration. A track that rises when they are loud and sloppy, and draws hunters as it climbs, does more for the tone of an evil campaign than any amount of describing how the villagers weep. It turns cruelty into a resource decision, which is exactly what you want at a table full of monsters: not "should we", but "can we afford to".
At the table
The most useful sentence I ever added to an evil campaign was said by an NPC, not a GM. A hired hunter, cornered and about to die, told the party that somebody much older than them had already noticed. They spent the next three sessions being careful, and they were careful for their own reasons.
The villain who does not want them dead
Here is the one that changed our campaign most, and it is free.
The apex threat above the party should not want to kill them. It should want to take what they have.
A villain who wants you dead produces one kind of scene, which is a fight you either win or lose. A villain who wants to harvest you produces a hundred scenes, because now every interaction is a negotiation you are losing. She can afford to be patient. She can let you grow, because you are worth more later. She can offer you things, and the things will be genuinely good, and taking them puts a thread in your hand that she is holding the other end of.
That is a threat evil characters cannot simply out-evil, and it gives the campaign a shape: carve out a hunting ground, grow while managing how loudly you do it, discover what has been watching, then evade, sabotage and finally turn and face it on ground you chose.
What this is really about
Every fix above is the same fix in a different coat. An evil campaign fails when the players have no pressure, no reason to be a unit, and nothing to fear. It works when they are hungry, when they share something scarce, and when something patient upstairs has already written their name down.
None of that requires anyone at the table to be cruel. It requires them to be predators with a schedule, which is a much better game.
Early Access
The campaign is coming.
Daughters of the Black Forest is five acts of exactly this problem, solved at a real table first. Get on the early access list to read it before it ships.
