Lol I recently took a look at the code. The monsters apparently scale up to around 1e300, I can't imagine what kind of universe-destroying beasts live in the wilderness
Viewing post in Cycle of the First Dawn comments
Yeah, that’s basically placeholder scaling so the current wilderness never became completely trivial at the end of the available content. In hindsight, letting it scale effectively forever was a mistake. I’m going to cap the current areas, and the later/deeper zones can carry the higher enemy ranges once they’re added. Good catch.