System for a zero-combat dungeon crawl?

[CharonsHelper]

Theoretically possible if you elide the requirement for negative energy density and negative mass, perhaps, and feasible if you allow for your ships to store literal tons of antimatter. We have no idea how to do any of that at the requisite scale, which is why all the popular articles about "warp drive" start with Star Trek references and never get any deeper from there. It's a blatantly aphysical black box.

The first article I linked especially DOES go into somewhat more depth.

And of COURSE they start with Star Trek references. That's the hook.

And where the heck was antimatter even referenced? (Not that I'm anything like a physicist.)