Name: Tartaros
Limiter: City Block-level
Tech Level: Medieval
Cosmology:
The universe consists of a massive, infinite block of stone. Through this stone are millions of veins, tunnels that link massive caverns, within which entire civilizations can be found. Some of these cavers can be the size of countries, and some of the tunnels can go on for billions of kilometers. There is no limit to the size of this universe, and as such one could theoretically keep going on forever.
Special Rules:
Gravity is no longer dependent on mass. There is a constant downwards gravitational pull equal to about twice that found on Earth. This level of gravity cannot be altered or influenced. Furthermore, vacuums don't exist. Any place that would form a vacuum is instead filled with a breathable atmosphere.
Factions:
> Iron Halls of Gilead
founded by the Evolved Humans in the massive underground realm of Tartaros after their ancestors were mysteriously transported here. They found an iron vein the size of a small moon, and have bee living off of it's fruits ever since. Their city is almost completely made of iron, and they're some of the best smiths in the known Multiverse. They also excel in rare metals, all of which can be found in the cavers on Tartaros, and they're fairly advanced. They have steam tech.