The oldest and most developed part of the universe, the most well known planets and other important locations in the Core, and their political affiliations are:
Freeport:
- Voidside: The poor half of Freeport, a mass of housing and shacks stacked up to 3 floors high. Home to most of the pirate crews that aren't part of the Unknown.
- Brightside: The wealthy half, far less densely populated and instead filled with a luxurious assortment of casino's, hotels and other businesses promising to sate even the most degenerate vices. Home to the Big Five crews of the Unknown, their associates and a constant flow of merchants and rich tourists.
Ego Ultd. and Elements Unbound:
- Twilight World: Homeworld of The Travelers and many races like Humans, Orcs, Dwarves and Halflings. These days its galactic presence is mostly focused on the two megacorporations vying for dominance over New Amet, the largest metropolis in the Core.
- Broken World: Two broken halves of a world on opposite sides of the Core with between them a large portal big enough for Spelljammers to move through. The asteroids clustered around the portals are home to Plasmoids and Bainen's Delve which was founded by a Dwarven mining expedition sponsored by Elements Unbound.
Trimino Combine:
- Water World: Homeworld of the Triton race and seat of the royal Celanovia - Krarrk family for half of each year.
- Maze World: Homeworld of the Minotaur race and seat of the royal Celanovia - Krarrk family for the other half of each year.
- Kraken World: Colony world of Tritons yet all know it is truly ruled by the planet's apex predators: the krakens.
- Drowned World: For decades the Triton and Minotaur nations fought a war over this world until it served as a catalyst for their union. Now it is best known as the location of Enigma LLC's headquarters.
The Eternal Dominion:
- Phantom World: Ancestral homeworld of the Elves, it was all but destroyed in ages past but now it is once again home to the high elves of The Eternal Dominion.
- Plague World: Mysterious planet, no living being has set foot near it and returned. The Eternal Dominion claims it based on their using undead minions to explore it.
Church of The Travelers:
- Goblin World: Homeworld of Goblins which might have resigned it to obscurity if not for the fact that their worship ascended The Travelers, a new pantheon of living gods. Now their priests called The Custodians are one of the most common sights in the Core as they spread their faith throughout the universe.
Giff:
- Powder World: Homeworld of the Giff who are one the youngest races only gaining consciousness after Itoa's rebirth after The Reckoning. The Giff are known for their obsession with gunpowder which led to them inventing firearms, instantly making them an important player on the intergalactic stage.
Dragons
- Hoard Worlds: the lair worlds of the Core's most ancient primordial dragons, some of which are worshipped as gods like Pythios and Agoras. Each color of dragon has their own world with its own hierarchy, or lack of it, depending on the dragons' personalities. Since the Age of Connection Dragonborn mercenaries have spread throughout the core working to gather treasure or otherwise fulfill the will of their dragon progenitors.
Gnomes
- Gnomeheim: The location of the Gnomish homeworld is unknown even to the Gnomes themselves. Only true gnomes can cast the spell allowing them to return. It is said to be home to both spectacular natural beauty cultivated by the Forest Gnomes and the legendary workshops of the Rock Gnome tinkers who created the Warforged and have traveled throughout the Core on their carts since long before Spelljammers were invented to sell their goods and services.
The Swarm
- Swarm Worlds: an invasive species of insects which has been spreading from world to world even without the use of Spelljammers.