@rezay Rats are slightly more survivable than humans but just barely. They will see it as a cursed land that borders on myth where the dead walk and the damned horrors of a past age stalk the sickly land. Any rat going in will have to get a signed warrant of exploration from the King and sign a contract. They're aware of what could be inside, good and bad, and thus will still try to make efforts to explore it to a degree. After all, OOC their tech develops very slowly unless they're studying old world tech or otherwise using something old world.
Personally, I also imagine that you might have some mutated monster come shambling out of the mire and thus the Knights of Highwarren mount up and do a glorious charge against the foul terrors in the name of King and Caretaker.
Hehe, the image of armored rat people on horses is pretty funny. Probably don't use horses, though
Yes, something like the Mirelurk queen (but larger) perhaps. Who knows what the place can hold.
Humans on the other hand are still greedy and will do stupid things if it means they might get rich. If NJ ever makes it to one of the sludgelands, the government in whatever form it will take will probably have a bounty sort of system where independent actors enter the place and try to recover ancient technology or whatever, nominally under contract with the government. Let natural selection take its course, who ever comes back comes back, whoever doesn't doesn't. Once there's a considerable number of humans to expend, that is.
In the case of some dangerous wildlife being drawn out of the sludgelands, then the government would become more involved. Can't have giant crabs eating your tax base
As previously stated, very dependent on a lot of factors though. If NJ takes the Imperium of Man route, they might act similarly to the rats.

