Let’s see, if I were to do a Paizo-style blurb for it, it would go something like this:
The world of Erinith has three constants: rulers scheme and fight, monsters and worse threaten the people, and adventurers put troubles to the sword for the right price. From your humble beginnings as fledgling members of Erinith’s adventurer population, you and your companions will explore the world, uncover ancient mysteries, and find yourselves drawn into a millennia-old conflict that has been forgotten by the world… but not by its enemies.
There are a lot of places with a lot of things going on, though, so what events the party gets involved in along the way (and which ones happen without you) is left up to the players to decide. The most important thing is to realize what your characters “know” may not be true, and pursuing why things are happening is just as important as dealing with the immediate threats. Note-taking is highly advised. I try to run things about half-and-half between RP and combat, though a given session generally leans heavily one way or the other, depending on whether you are exploring hostile areas, in a settlement, etc. Also, I have a thoroughly ridiculous amount of stuff written about the world as a whole (several dozen pages of fairly dense notes), but I usually build out what’s happening in a specific place based on a combination of my own ideas and the goals/interests players provide. I’d also been working on getting everything moved over to WorldAnvil to help organize stuff for everyone, but I haven’t really had much motivation for that lately.
The player world doc is here: https://docs.google.com/document/d/19slYhMbHlvv34ISRNGLqf1anHQdNFTK3G9djpZngIXc/edit?usp=sharing