### A world-building game for any number of players
*This is How it Happened* creates a setting with a rich history that all of the players are invested in. The resulting setting can be used as the seed of another role-playing game. Players take turns: step one always comes first, and step two always comes after that. After step two you start with step one again.
## 1. One thing happens.
The player says one thing that happened, ideally in a single sentence. You can enforce the strictness of the one-sentence limit as tightly or as loosely as you wish.
## 2. Some time passes.
The next player decides what unit of time has passed. The player should say whether an hour, a day, a week, a month, a season, a year, a decade, or a century has gone by.
## That's it.
Add wrinkles or random chance to the game:
1. Roll 1d8 to determine which increment of time has passed in step two.
2. Draw a tarot card and explain how it fits in step one.
3. Roll on any random table in an RPG sourcebook.
4. Let a child take a turn.
5. Try something else!
An expanded version of these rules is available at http://homebrewery.naturalcrit.com/share/B1WHvnx2ue