When I run games I often wonder what will be the defining feature of the campaign. Having a moment or idea that defines the campaign can lead to a strong and satisfying narrative understanding of the campaign for everyone involved. For me, however, this sort of setup isn't easily achieved. I like games where the players, are the parts of a larger whole, not the sort of people who shake the foundation of the world unless they have really earned it. On top of that, I value player character agency above all else, instead of having a set adventure path ready I have many many possibilities prepped and ready to be encountered. One may ask how do you get a strong defining aspect of a game that you are unsure of even the most basic outcomes of, and for that, I have made the bombshell method. A bombshell is an event that radically changes how the world functions, this can be infrastructural, political, supernatural, scientific, ...