DB Multiverse

About the Comic
Dragon Ball Multiverse is a French fan comic that takes place 10 years after the events of EoZ (End of Z). It began publication in 2008 (long before the announcement of Dragon Ball Super) and focuses around the concept of a multi-universe tournament between the best fighters of each of the 20 universes competing.

Dragon Ball Multiverse is essentially a wish fulfillment comic, where many matchups we never got to see in the original show duke it out for supremacy. Characters like Bojack, Vegetto, Freeza, Buu and more all make an appearance in a bid to fight for the top spot.

Prologue
We begin with a new race, the inter-universe travelers, the Vargas entering Universe 18 (the main Dragon Ball universe) and offering to enter them into a no-strings attached tournament where they can fight all they want with the chance to have a wish granted by their Dragon Balls.

After virtually no deliberation, Goku, Vegeta, Uub and Gotenks agree to enter and our heroes are quickly whisked away to a deserted universe where they meet the competitors of the other 19 universes they'll be fighting against.

Universe 01 -
A universe where the kaioshins were more proactive in dealing with threats in their universe. They help to keep the peace and were involved in the organization of this tournament.

Their story:
 * 5,000,000: Killed Bididi before he made Buu.
 * 242: Killed previous Legendary Saiyan.
 * 712: Killed Freeza, Cold & Coola.
 * 737: Killed Broly.
 * Until now: Nothing special...

Universe 02 -
Universe with no logic and containing people from other worlds.

Their story:

It's magical. No logic in this universe.

Universe 03 -
The story of this one seems complicated. One big change enabled several others.

Their story:
 * 737: Bardock gets his visions
 * After: Saiyans terrorize the universe.
 * After: Raichi kills Saiyans.
 * 780: Raichi meets Tapion.

Trivia

 * The comic was originally created with a pen and paper. After page 100, a transition was made to digital creation.
 * Dragon Ball Multiverse often sprinkles special chapters in-between it's main story chapters, which have been drawn by a variety of different artists over the years.
 * While the comic is available for free online, it is possible to obtain a physical copy of the books if you attend certain French festivals/conventions.
 * After 10 years of operation, DBM decided to become an Association under French law https://fr.wikipedia.org/wiki/Association_loi_de_1901 (Essentially a non-profit organization) that allows them a better legal framework in the event of a clash with DB rights holders and allows them to have better book keeping for their expenditures with regards to the website, convention costs etc.