Earths:

Earth-1111 - It is the physical representation of the living universe. It was made from Earth-0 OG Canon.

Earth-0 OG Canon - This one became the Turtle of Power and all the other earths. Then it returned again!

Earth-0 - This is the restored form of Earth-0 OG Canon. It can turn into a very big and dangerous sword.

Earth-1 - Utopian Earth. Earths 0-5 protect Earth 1111, the prototype template for all the different Earths.

Earth-2 - Specializes in electronics, manufacturing, and delivery. (services) Every (legal) job exists there.

Earth-3 - Produces things for mining and explosive objects due to the special giant underground factory.

Earth-4 - Clone of the second (numbered) Earth. A travel and shopping hub. Few lights, always daytime.

Earth-5 - Clone of the third (numbered) Earth. A storage unit. Freeze-stores new tech and some people.

Earth-6 - Origin of all hacks ever. It's a prime market for young meme makers and aspiring new hackers.

Earth-7 - A video game world. You can respawn here. It’s strange in terms of its sideways orbit and rings.

Earth-8 - A world in eternal night. Its sun is in a Dyson sphere, so it's gone. It orbits around a black hole.

Earth-9 - The inhabitants are good at tool making. An experiment made their moon disappear into a void.

Earth-10 - There are infinite numbered Earths besides this one. Access the multiverse from a portal here.

Earth-(500/-500) - Two halves of two Earths stuck together. Walking from one side to the other is allowed.

Earth-88 - Deer planet, it later has a giant laser. Also called Earth-Bald. Has the best internet connection.

Earth-9999 - Backup world, still being updated. Covered in lasers. It also is a giant new energy battery!!!

Earth-12345678910123- The (electronic radar) scans have driven people crazy. They make teleporters.

Earth-101010101010 - It's a giant, shiny, metallic city, has engines, and has many special/unique portals.

Earth-Infinity - All the Earths got merged into this in the future. It exists in (yet another) alternate timeline.

Earth-0123456789 - Lots of Canon there. It's the largest and grandest Earth; it has the best celebrations.

Earth-10.5 - The origin of Transmetalamium. Therefore, a mass-scale mining operation is going on there!

Earth-0.1 - A small pocket dimension. Home to nanobots. It has a powerful cloaking device installed on it.

Earth-(-0.1) - The entry point to the Negative Realm. The wormhole there is still stable for now. Possibly.

Earth-(-1) - Supposedly where Ayan's main base (copied universes) is. It's a multiverse of its own. Scary.

Earth - It's the real world. The primary universe. All the writers call this green, medium sized world home.

Earth-Earth - Home of the multiversal internet server. It's also the source of all the creativity in the world.

Earth-Meme - The origin of every meme ever. Can be accessed through an Earth-Earth portal only. Quiet.

Earth-Blob - It's covered in slime. Its many alien fish-like inhabitants don't seem to mind that at all though.