I don't exactly see where to post anything about my world aside from here, but here's an idea I've had for a world for quite a long time.
Meon Apxia could be widely considered to be a medieval world populated by various fantasy creatures, it is a densely forested planet with vast oceans and seven distinct races. Elves rule the central empire on the main continent and have the highest influence on the rest of the world, orcs native here focus on proving their might through various means and tend to be slightly more intelligent and less barbaric than the most widely accepted species of orcs. The drow live in the caverns and at the base of mountains, while the dwarfs live in volcanos, using the magma to forge unparalleled materials while also building mechanized steam powered vehicles for deep earth mining. Humans and Vesk are not native to this world, but they can be found in small communities in the Elven capitol and in small developing colonies. Dragons aren't considered a social race or even one of the dominant races, but are respected and treated as such during the planet's most dire time of need.
The Elves came to be the dominant race on this world through a treaty with the dwarfs, the drow, the orcs, and dragons to all ally together under a single banner under threat of an invading force. A renegade faction of Vesk seeking a foothold on a world sought to invade this weaker planet that was lacking in technology. Before invading they abducted several locals and soldiers to perform experiments on them and test their strength in combat, it is in the prisons of this flagship where a small human population was being kept. These humans staged a breakout and riots and panic ensued allowing for a large portion of abductees and prisoners to escape in the escape pods along with a small faction of the renegade Vesk who wanted to escape the tyranny of their leader. Those that escaped managed to warn the elven emperor of the dangers that were to come, and the humans that landed played a part by modifying the pods to have flight capabilities and the Vesk proved themselves to the locals by helping make weapons to fight.
The elves hurried to gather everyone they could ally with and made a plan, a small faction of soldiers would be loaded into the pods and fly up while a ground army would fight the Vesk and hold them off. The fight itself was a magnificent one, dragons taking down Vesk fighter ships and Vesk shooting down dragons, waves of militia getting blasted at by the enemy fighters while magic and steel was all that could protect them. While the main force of Vesk were distracted the strike team took the pods up to the flagship and invaded, managing to slay the Vesk leader and use the master control switch in the flagship to deactivate the fighter ships. (This is normally to prevent fighters from going renegade but provides a fatal weakness should it be implemented. Forced into submission the remaining Vesk were forced to sign a treaty as victory had been had that day.
Using designs from the flagship the Elven Empire began to rapidly advance beyond modernization, the infrastructure remaining mostly the same and new buildings taking on a more futuristic look. The capitol became the most advanced and culturally diverse area in the world and houses the only spaceport for ships seeking to land. The rest of the world is in a rush to catch up but the Elves have the technology to out power the rest of their world.
Now Orcs and Vesk compete for power and dominance in the southeastern marshes and there's a small population of humans who have integrated into drow, elven and dwarvish societies. Neither human nor vesk has their own foothold on the planet, but both have managed to make small colonies in various areas. Rumors circulate of Vesk insurrection and another fleet rumored to be summoned but those might possibly be rumors alone. This planet remains neutral to the rest of the universe's affairs, having only one route to trade with other worlds to a small trading post that connects to much larger ones elsewhere. This leads to a reputation of being a very unknown world in the larger universe, but while also consequentially making the locals very ignorant to the rest of the universe.
(Just a little note here, just assume most flora and fauna are of a typical fantasy setting.)
As for the species little has been spoken on until this point such as the Drow, very little is known about them on this world, but upon the rise of technology they began practicing special blood magics to improve their weapons and armors to help better stand a chance against these new threats. The Dwarves are isolationists that used to be the most modern society on the planet, until the elves took that spot, now they seek to compete with the elves and race to uncover the secrets of space-faring, having opened themselves up to humans and foreigners from the stars hoping to uncover their secrets. The Orcs care very little for the affairs of others, but seek honor through combat, their laws dictate if one wants to step foot in their land they must do unarmed and unarmored combat against their chief or someone the chief selects in his place, the orcs have modernized the least but hold a larger portion of territory than the other races due to rapid expansion. Dragons are thought to have been the ones who brought these species to this world during the time of "The Gap" they are a mysterious kind who act intelligently, but it is unclear what their motivations are, they all live on a small singular continent north of the main land, but the emperor of the elves can communicate to their leader through the crown he wears on his head.
To leave or enter the planet legally there must be special permission granted by the Elven Empire, but should the chief of the orcs, the queen of the drow, and the council of dwarfs all agree to grant one permission or request someone to enter then the Elevn Emporer would have to grant that individual or individuals special permissions as per an agreement signed known as the Void Seeker agreement. If one is to crash then their best hope is that they aren't near an Elven settlement as they would be detained for illegal entry into their world, but if they land far enough away then they would have a chance to appeal to each of the main legal bodies mentioned in the agreement for permissions to travel to and from the planet itself. The Elves are very territorial and became rather secretive and possessive of advanced technology after claiming the spoils of battle from the Vesk. This has resulted in the humans and vesk being stuck on the planet after fending off the invasion with no way off, totally disarmed of technology and the few that do know some things work for the Elven empire as that was the nation who claimed them first upon their arrival. However a few of the orcish soldiers from the pod strike force did pick up some schematics for various combat technologies such as guns, and advanced armors allowing for the race to have a small amount of advanced weaponry. This makes the orcs the only race on the planet aside from the elves that guns and ammo can be bought from, despite being a lower quality and lower supply.
As for religion there is a common belief that the dragons are actually angels sent to save and protect them, but there is no evidence to substantiate this claim. The god who is thought to have sent them is named Eilger. Nothing is known about this diety or if he or she even exists but small churches to the diety can be found across the globe praising the one who was thought to have spared them and protects them in their times of need.