I haven't slept so I can still make a post for today. It's gonna be simple, talking a bit more about the Gigacrawler idea.
There are no potions. At least not in vials. They're all syringes. And the potion miscibility table is a necessity because there could be a rusty needle, or a potion might be leaking, or it might have gotten too much oxygen in it, or it could have sat out too long and mutated.
(I'll make a table later)
And another thing. Since these dungeon is all the the universe, and some of it is just tunnels and corridors, horses are obsolete. Dogs have replaced them. Everyone has a dog. Some fight, some don't. They're mainly used for carrying supplies.
That is all for now.