My name is Leon Lehad and I created a planet by piecing together worlds. I tore planets apart to save a myriad of races and species. In my creation I forced the planet to the farthest reaches of the planes. My planet is fueled by the mana I release by breathing. The gravity is slightly lower than Earth on the surface but the hollow core has gravity similar to Earth. The also spins opposite of the surface turing the planet gyroscope. The mana density of the core area of Lehaedia slows the aging of the creatures inside by 50x causing healthy humans to live to 5000 years. However the mana density causes some humanoids to mutate they are referred to as the Aberrants. Lehaedia is 1.5x the size of Earth in surface area and has a 48hr day with 360 days a year. The weather stays mild outside of the desert and canyon areas peaking at 98F in the summer. The lowest temp on the planet is in the core area near the outer edges where the average temp is 0, whereas the lowest surface temp is 35F. The reduced planet spin doesn't affect creature aging due to the mana density. The humaniod population of the planet is 25 million, 15 million in the core and 10 on the surface. The surface is divided due to mutual xenophobia and to prevent world wars I created the Wardens. Each race with a warden must have 1000 population and one of them must be comparable to an Elder Tarrasque. Once a race has a Warden they are protected by my will and any attempts at genocide are swiftly punished. However some races have too much reproductive capacity and are rendered sterile by an Artifact-level curse preventing them from overpopulating, the maximum population for these cases is 500 thousand. Wardens are race specific and half breeds can challenge either Warden but not both.
On the surface there are around 5.1 million Humans, 1.4 million Elves (Various Subraces), 500k Kobolds, 300k Dwarves, 200k Shifters (4 tribes), 800 Loxodons, 200 Pixies, 199k Pangali, 300k Orcs, 1.5 million Goblinoids (Goblins-Bugbears), 250k Goliaths and, 250k Fremen (Based of off Dune and similar to elves).
The races of the core are different and the Warden of the Core is selected as the strongest combat entity aside from myself, little difficult to kill a prime diety of Death. The core area functions this way due to my constant presence and the existence of the academy I built. Limit Breaker academy allows for mortals to exceed their limits and surpass level 20. There are other ways for a mortal to exceed 20 but, it is easiest if I or one of my disciples teach. There are several classes that adventurers can choose from but irrelevant of class all adventurers start in Jackpot Tower. Jackpot Tower is a Landmark physically located above the northern terminus of the Gandr River. Most settlements have a teleportation circle to the front entrance of the tower. The tower physically stands 900ft tall and is 100ft diameter cylinder. However the interior is a series of 777 rooms each 300ft in diameter and height.
The Gandr River is the only river on the planet and it circles the planet along y-axis. The river is 90,000ft shore to shore, is made entirely of fresh water, has an 18.5k depth and is devoid of aquatic life while flowing. The river ceases to flow when 2-4 times a year for 8hrs during which the marine life from the Jotunn Pitt flood the river. When the river resumes it turns all of the occupants into chum as the river flows at 1.4mil cubic feet per second.
The Jotunn Pitt is a sea covering the north pole of Lehaedia is a circular sea 10 million feet in diameter. The waters of the Pitt are still and teeming with life. It is 10,000ft deep at the edges and turns into a massive whirlpool that drains into the core while the river is still. The center point of the Pitt is 30,000ft from the still surface and the drain is facilitated by a 50ftx50ft door. The Jotunn Pitt is surrounded by massive granite plateaus that are 75,000ft above the still surface.
The Jotunn Plateaus are three plateaus that form massive stairs. The tallest is 75,000ft tall and the shortest is 1500ft. The tallest plateau rings the Jotunn Pitt and extends 50,000ft from the edge. The second plateau is 5000ft and extends 750,000ft from the first plateau. The final plateau is 1500ft and extends 20,000,000ft before melding into the short side of Jormun's Teeth.
Jormun's Teeth are a mountain chain on both the Eastern and Western side of the Gandr River. The short side is 1500ft and the tall side is 8500ft. The mountain ranges extend 7.5 million feet from the edge of the plateau. The Eastern side is home to Chromatic Dragons and Kobolds. The Western is divided between the Metallic Dragons and Dwarves. The are extensive cave and tunnel systems throughout both sides due to there being no traversible paths through the mountains. The Eastern Hemisphere is where the Desert, Volcanoes, and Dead Forest. The Western is home to grasslands and forest.
Pan's Dead Forest is an area with rolling hills covered by dead trees on the Eastern Hemisphere. This area is home to the Shadar-kai and the creatures of the Shadowfell. The dead forest has several High Mana Density zones which cause the forest to bloom. The forest extends south from the Jormun's Teeth 30 million feet.
Pan's Living Forest is on the Western side and takes the same area as the Dead Forest. This side is home to various elves and is similar to the Feywild. It's home to the Nature Domain's Extreme High Mana Density area. This area is lethal to most mortals and it is only recommended to enter if you are either a Demigod or have extreme elemental resistances.
Folly of Horus is the desert and contains a small volcano chain. It is home to the Fremen and sand worms. It extends 2.5 million feet from Pan's Dead Forest. The volcano chain is a small area covering 500,000 sq.ft. in the central region of the desert. A field of glass surrounds the volcanoes known as Set's Spires
Demeter's Joy is on the Western Hemisphere and extends 2.5 million feet from Pan's Living Forest. It is home to the majority of the humaniod races. The area is a massive flat fertile grassland.
To the south of both Demeter's Joy and Folly of Horus is an area riddled with canyons and chasms. It extends 3.5 million feet and the caverns range from depths of 1500-10000ft. There are many subterranean caverns and fissures that are populated by the Pangali and Dwarves.
The south pole of Lehaedia is covered by a massive mushroom forest with a diameter of 11 million feet. This area is home to the Aberrants and a city called Curse-Breaker.
The crust of Lehaedia is relatively thin being around 8 miles thick. However the mass is only around 6% higher than Earth. The gravity on the surface is 7.84m/s and is reliant on mineral wealth for trade. The technology level of the surface is equivalent to late Renaissance to very early Industrial Era in comparison to Earth. The core however is model example of aetherpunk blended with 21st central tech.
There are numerous high mana density zones and 8 extreme high mana density areas spread across the whole planet. The extreme areas are home to 3 naturally created artifacts known as Sword of Damocles, Lehad Figg and, Limit Breaker Apple. The Sword of Damocles are the only dangerous artifact and it is not immediately dangerous.