System: Any, contains no rules-specific material.
While the scenario, the ongoing quest, provides the meat in any campaign, a good Gamemaster needs more ingredients to add substance to the adventure, she occasionally needs to spice up slower parts of a gaming session. With that in mind Big Finger Games offers the GM’s Cookbook line of pdfs.
GM’S COOKBOOK: Modern Events #1 offers twenty random happenings in a modern city.
Random and unexpected events can help give your campaign a realistic verisimilitude. It gives the players the idea their characters exist in a real breathing world and things are occurring outside the scope of their limited perceptions. They can hear snippets of conversation, witness strange actions that make little sense when you don’t know their context, or have unexpected encounters with denizens of the campaign world.
Check out Big Finger Games' complete line of GM's Cookbooks (color-coded by genre)!