Disclaimer: I do not own any of the computer adventure games by Sierra On-Line Inc. This is a work of fiction, and is based off of the concept of characters from neighboring games, like Larry and Rosella, meeting in the same parallel world despite one of them not belonging there; it doesn't actually reflect real life in any way.
In time immemorial, when God, or the natural course of the universe, caused the Big Bang, created the primary universe, and brought life to the world known as the Earth, he also created countless parallel worlds and universes.
Though the scientific details, like quantum physics, had not been discovered by science until the twentieth century, many of Earth's humans suspected that there was more to the universe than just their own world and their own race. And when that particular century arrived, most scientists began to agree that a series of "pocket universes" existed so far apart that they couldn't touch each other, and yet so close that people from each universe could have dreams, visions, or even computer messages or images from the other ones.
This fascinating phenomenon was named the multiverse.
Throughout the years, stories circulated through books and TV shows all over Earth, some fictitious and some presumably not. Everything from discovering a ghost ship at sea to time travel from the far future into the past billions of years ago.
Arguments arose, too, about whether or not these pocket universes were caused by God or gods, or even by some other spiritual force, for there were some spiritual and religious people who believed in the multiverse just as much as the secular pragmatists called atheists and agnostics were.
This is not the story of a spiritual/secular debate about the multiverse, though. It also is not about the quantum physics behind parallel worlds, or even the traditional tales that "crazy" people tell unbelieving "realists" every day.
It is about some of the interesting and humorous occurrences that happened in a particular corner of the multiverse. Because, starting in the early 1980's, a team of computer game programmers and marketers started to design and make several series of games that would take on a life of their own and interact with each other, and with the Earth, and quite possibly with other parallel worlds, too.
These are the adventures of the characters in the Sierra multiverse as they bump into each other in their own worlds and with ordinary humans on Earth, and these are the games they come from:
King's Quest: Graham, Alexander, Rosella, Valanice, Cassima, Edgar, Genesta, Connor, three-headed dragon, one-headed dragon, Crispin, Cedric.
Space Quest: Roger Wilco, Beatrice Wankmeister, Roger Wilco Jr., Sludge Vohaul, Model QR 7 pilot droid.
Leisure Suit Larry: Larry Laffer, Passionate Patti, Lefty, other ladies in Larry's life.
Police Quest: Sonny Bonds, Marie Wilkans Bonds, Keith Robinson, Laura Watts, other cops, Jesse Bains.
Manhunter: nameless manhunter, Orbs, Phil Cook.
And above all else, remember this: whether there is a God or not, the multiverse exists, and anything is possible in it. Even works of man-made fiction can create a parallel world. If books like The Chronicles of Narnia and His Dark Materials can have a multiverse, so can the Sierra games. So proceed, please, and learn about how the multiverse can be not only fascinating, but also humorous.