Duel of Honor: honorable fight with musket or saber. Sure, with audience.
Betrayal: Alliances are made - and constantly broken. A bit like in the parlor game "Junta".
Espionage and "Find the spies!" Eavesdrop, track, interrogate....
Masked ball for the nobles and wealthy. Lower class chars try to sneak in. Dancing, politics, intrigues, betting, games, séances, shows - and then a disaster happens.
Hunt for thieves, smugglers, robbers, murderers, forbidden groups, nasty witches...
Class struggle: rich against poor. Nobility vs. lower class. Law against outlaws. Believers against pagans. James Town vs Taboo Moor....
Nobility: wigs, powder, makeup, sanctimony, decadence. Apparently, they are just partying and playing. In fact, they constantly give out orders (plot-givers, not adventurers)
Torture by torturer, Mad Faces or shaman.
Skirmishes between houses, shootings, blood, tragedy....
Sometimes bribery, negotiation works too...
French Huntsmen attack James Town or Taboo Moor. Mad Faces sneak into the camp at night. James Town declares war on Taboo Moor, etc.
Secret circles, secret meetings
Dark and forbidden rituals...
Legal experiments: chemistry, physics, medicine. Science and research...
Forbidden experiments...