The Core Worlds (also known as the Galactic Core and, during the Imperial era, the Imperial Core) were some of the most prestigious, well-developed, well-known, and heavily populated planets in the galaxy. In astrophysical terms, the Core denoted the central area of the galaxy, and in broad terms this was true enough, but the precise usage of the term was sometimes more complex.
The major Rimward hyperlanes radiated outwards around little more than half the galactic disk, and the Core Worlds occupied a C-shaped region of space around the Deep Core, the heart of the astrophysical core, which was considered as a separate outlier area, facing in the opposite direction, and extending outwards towards the Unknown Regions.
Humans were believed to have come from one of the core worlds. It was most widely speculated that Coruscant was the birthplace of humanity, although there was little to no archeological evidence to support that theory. Before the invention of the hyperdrive, galactic civilization was limited to only the Core Worlds. Densely populated and heavily industrialized, the Core Worlds were a vital factor in any campaign to rule the galaxy.
In the game, there are three planets accessible in the Core Worlds: