Special World Types

Special world types are unique planetary classifications that go beyond traditional designations. These worlds possess distinct characteristics or functions that set them apart from regular habitable planets. The Thoria Empire acknowledges three such special world types: the Nexus Concordia, Ecumenopolis, and Helion Energy World. Each of these classifications represents a planet with a specific purpose or feature that defies conventional categorization.

* **Nexus Concordia** - A Nexus Concordia world is a unique and exceptional type of planet that serves as a neutral ground for diplomatic negotiations between two factions. It operates as a colossal world-spanning embassy, providing a neutral and secure environment for factions to engage in dialogues, discussions, and negotiations to address conflicts or reach agreements. The Thoria Empire maintains a limited number of Nexus Concordia worlds, with only one designated for each major faction across the entire galaxy.
* **Ecumenopolis** - The Ecumenopolis is a remarkable phenomenon within the Thoria Empire, embodying a massive urban development project that transforms entire planets into sprawling metropolises. While true Ecumenopolises are rare in the empire, their scope and scale are monumental. These projects involve the creation of extensive cityscapes, often spanning multiple levels and towering hundreds of stories tall. An Ecumenopolis is characterized by its comprehensive urbanization, with entire planets being reshaped into densely populated hubs of industry, commerce, and habitation. While some worlds may feature a single, colossal city that encompasses the entire planet, more commonly, multiple city levels emerge, creating a multi-layered urban landscape. Hive worlds, which are prevalent in the Thoria Empire, often resemble partial Ecumenopolises, with numerous city levels stacked one upon another. The towering structures and intricate architecture of Ecumenopolises stand as monuments to both engineering ingenuity and the density of population that defines the empire. Lonevav, an upper middle-sized hive world, provides an example of this phenomenon. With 87 distinct city levels, Lonevav showcases the intricate layering that characterizes many Ecumenopolises.
* **Helion Energy World** - The Helion Energy World stands as a monumental achievement in the Thoria Empire, representing a pinnacle of technological prowess and energy harnessing on an unprecedented scale. This special world type takes the form of a Dyson Sphere, an astounding megastructure that encircles an entire star, capturing its energy output for the empire's use. These extraordinary constructs are recognized as the ultimate energy sources within the empire, providing an almost limitless supply of power to sustain its various operations.However, the creation and maintenance of Helion Energy Worlds pose immense challenges due to their sheer size and complexity. As a result, they are a rare phenomenon within the empire, even fewer in number than Nexus Concordia Worlds. The level of technology and engineering required to build and maintain such colossal structures is staggering. Each Helion Energy World requires careful planning and management to ensure the continuous and efficient capture of energy from the star it surrounds.