This is cool! I'd love to learn more when you get the chance! 😁

Sure thing! What would you like to know?

These characters here would be like NPCs the players get to interact with? Or are they a hypothetical group of players?
If the former, what services do they offer?
Who are The Powers That Be?
Contextually, they seem to be at least benign, as opposed to the Opposition. 🤔

They're NPCs, essentially. As for what services they offer, they can be quite flexible on that. It can be that they have an item they gift or trade with the dungeoneer, or they might give information: usually a password for something up ahead, or a tip.

The Powers That Be are the side broadly accepted to be 'good', as in good vs. evil. The Opposition is the evil side of this struggle. Although all of that lacks resonance in Knightmare as the most powerful entity in Knightmare is the dungeon itself, which reshapes itself every season and seems amoral and non-sapient, and basically just grows a little bit more every season. Nobody seems to control it.

So the Powers That Be seem to be interested in helping the Players get through the Dungeon? Do they do this through the NPC characters, or can they intervene directly?
Conversely, the Opposition seeks to hinder the Players? I suspect they have their own agents, as well.
I'm also wondering what these two powerful forces want from the Dungeon. What's their connection to it, since it is its own entity in a sense and cannot be controlled. 🤔

The Powers That Be got more interested in later series, but the earlier series are a bit murky on that score. There wasn't so much of a story to explain all this, but it seemed that the dungeon master, Treguard, didn't particularly care whether the dungeoneers lived or died, although somehow he got away with his indifference on account of being a very avuncular figure and the right sort of creepy. He was the only one who had mastered the dungeon at that point and, while he didn't begrudge the competition of someone else making it (in fact, he was delighted when they did), he also had a responsibility as the dungeon's keeper, and since the dungeon really can't be contained by anybody, my headcannon is just that he'd gotten apathetic about it beyond making sure people stayed relatively safe.

Once the Opposition showed up there was more urgency to hold them back. There was no particular gain for overcoming the Powers That Be; once again, my headcannon is that the Opposition would have been less responsible for the dungeon's management and marginally more harm would have come to people under their leadership. Or perhaps, quite a lot of harm would have come to people in the dungeon - there were quite a few people living in there just trying to get by.

Wow. There's a ton of lore in this show. 🤯

Interested? I meant invested! But yeah, there is!