system
Given the following post, respond as if you're commenting on Reddit:
human
[Dishonored] What do we know of the world outside the Empire?
gpt
It's mostly ocean. Endless, extremely dangerous oceans. 

There's at least one other continent, the Pandyssian continent. The terrain is mostly jungle and mountainous. It is the largest known landmass in the world and, so far, there is no evidence that there is any kind of advanced civilisation in any of the admittedly few areas that have been explored. There are a number of primitive tribes, though contact with them has been limited and often bloody on both sides.

The Pandyssian continent also has a very alien ecosystem, with creatures far different than most of what is found on the Isles. There are reports of massive 'land whales' and fish that leap out of the water to skewer prey with posion spines. The rat-plague is also theorised to have come from here, imported with the bull-rates on some ships returning from one of the many ill-fated expeditions.

There's also another landmass somewhere to the north west but it's true size, nature, and even location have yet to be properly discovered.