Dude. Read how you've been writing. For starters, you just recently lectured me on the definition of the word "alchemy". So this comes across way too much like, "I want to dish it out, but I don't want to have to take it."
So your setting is actually Earth? But then what's the Andala Desert?
I didn't lecture you about a definition, I pointed out that alchemy is science, because many ppl forgot or never knew that it was more than just a bunch of hocum about living forever and transmuting things into gold. I was pointing out an actual distinction that I wasn't sure was clear. I got no issue with pointing out legit distinctions.
Anyway, why does it matter how my setting is set up? We've now gone miles away from the topic on a tangent that was meant to just be a quick example of how the word alchemy is/can be treated in a setting, which itself was a bit of a tangent.
Since you seem genuinely curious, the setting is Earth, and also a number of other worlds that are connected to earth, including a "Fey" world with many name, generally called The Otherworld (because realistically, some names of things are inventinve, and some just aren't) from whence come the Alfar, Djinn and many other races. The worlds are connected through places called crossroads, and it used to be much easier to pass from one world to another. In ancient times, the worlds weren't signifigently separate, and humans and the other races evolved side by side.
Otherworld is unique among the worlds in that it's geography isn't really logical or static, like distances aren't always the exact same between to distant places, and it is the world that is closest to Midgard (the "real" universe), and has many areas that analagous to Earth, because the Fey have long memories, and have an easier time crossing into our world to hang out with us in disguise than most.
The Andala Region is a region covering about twice as much land as the RL Sahara, with geography ranging from Sahara type desert to rugged badlands, with a few verdant river valleys and a LOT of coastline. The Alfar there have cultures that developed alongside ancient human cultures, and some that didn't, but all are effected by humans, and vise versa.