Megaverse

A Megaverse is a group of Multiverses with different contents. Megaverses can contain an infinite or finite amount of Multiverses.

Formation
Megaverses can be formed when a group of Multiverses collide or are pulled into each other by their gravity. If there are too many Multiverses involved in the process, the new Megaverse will almost always be extremely unstable, possibly ejecting all of its material until it is entirely gone.

Structure
Megaverses, due to their extreme size and the way they form, usually have a very chaotic inside. Matter is constantly being ejected and pulled in, making living in a Megaverse very hard.