Anthrem
This world is for the main story of Anthrem: Goddess/Glory. Though it is applicable to Anthrem; Legends (next gen) and the Anthrem: Game
There are seven worlds of Anthrem, called the Goddess's seeds as it's said the goddess planted seven seeds into the universe then later developed Earth for modern humans. The seven worlds are connected by teleport gates, as each world is about the size or bigger of Earth, only the first and second realms being smaller. The realms are ruled by leaders, though their land may be divided up as they rule over other leaders. The seventh, sixth, and fourth worlds are empires, while the fifth is a kingdom, and the third and second is a dictatorship. Meanwhile, the first worlds is mainly ruled by criminal lords, bandits, heroes, gods, and other such beings, as the world there is in shambles.
-The lands are drastically different, and start becoming better when you go between them. Some will be on the same world for all their lives while others constantly move around. The first world looks like a post apocalyptic world and has numerous undead.
-The second world is a burning hell, where fiends and demons tend to be the main monster. It's ruled by the goddess's Hel, Hades, Persephone, Ereshkigal, and other such underworld deities.
-The third is an icy tundra, where everything is frozen over. It's ruled by Eira Arne and her military forces. The military is highly loved and supported there. Eira is the commanding General and the sections are given to her Major Generals to rule and protect. There tends to be a lot of icy monsters and elementals.
-The fourth is a rocky place filled with plenty of mines and elementals. It's ruled by Empress Fafner, a strong dragon woman. Under her are kingdoms and queendoms, she's also the sister of Syrel. There tends to be a good amount of stone creatures and some draconic monsters here.
-The fifth is a fey forest, filled with elves, spirits, and other such magical creatures. This is the only world that doesn't have any natural monsters, that's rumored to be because of the Goddess's blessing and the sanctuary located here. However most of the world is woodland and undiscovered, as the residents here only take what they need from the forest and always give back. It's ruled by King Valen who's is a 10,000 elf (the oldest elf known today). It's rumored he knew the goddess far better than the others.
-The sixth realm is the Holy Empire of the Goddess, either ruled by a member of the Fire, Noire, or Azure family. This kingdom is also said to be blessed by the goddess, but this blessing simply allows excellent mages to be born. There's a lot of magical beasts and stereotypical RPG monsters here like slimes, horned rabbits, and mixes of those from lower worlds.
-The final world is the Oasis, an empire ruled by the youthful emperor Victor. It's the top 1%, the most expensive but beautiful world. Many magical items, beast, gods, and influential people live here, and it's monsters tend to be magical beasts but rarely show up to attack. Fashion, Science, and Tech capital.