doctornecrotic wrote: Wed Sep 10, 2025 2:56 pmSo, I will admit part of this is because of an ambitious crossover I want to do with The Piazza/Wildspace Magazine Team in the future. Big Mac, the lead editor, certainly seemed interested. But, I've had an idea of merging the logic of Spelljammer and Ravenloft through a unique cluster that evoked the rules of both. Obviously, it can't FULLY evoke both and concessions will be made... especially on the spelljammer side. I have read The Dread Space, but I wasn't fully sold on it for various reasons.
(Mind you, I love Hour of the Raven's work otherwise.) As this is a thread that is heavily built on the Spelljammer Campaign Setting, I'll assume familiarity as such.
It's an interesting idea! And I love "crossover canon" that connects two different settings.
I will admit however, that I am personally more interested in the opposite idea of your idea. Ravenloft has some locations that have been swallowed up from the Material Plane and I'd like to be able to create Spelljammer crystal spheres around those places, to explore what happened to Barovia's world...and planetary system.
(Is there a big "Barovia-shaped hole" on "Barovia-world"? If you try to land a spelljamming ship on "Barovia-world" from Wildspace, do the Mists of Ravenloft extend up into the sky? Is it possible for people on the Material Plane planets (or visitors to those planets) to attempt to go into The Mists on a "rescue mission" and make it back out? I've actually been trying to make a list all the Material Plane worlds mentioned in Ravenloft products for my
list of "minor D&D worlds" on The Piazza, but I keep running into the "False History" thing where the world does not really exist. But so far I've found a couple of planets (or places on planets that were actually real places pulled into Ravenloft.) Anyhoo, your idea is great too, so I don't see why we could not do both things.
doctornecrotic wrote: Wed Sep 10, 2025 2:56 pmLet's first muse on logic then. So, it's a cluster that mimics the feel of a Crystal Sphere. Travel will have to be done via spelljamming ship. But, just HOW big would this misty-wildspace be? For one, as big as the Powers probably need... but really, you'd probably want to fake the SJ-approach to distance, where a ship can achieve a certain amount of travel per day. Likewise, worlds would probably be facades/barriers between domains as one gets closer to the domain proper. Anything beyond "the simulation" could be abstracts of what a world may have or slowly degenerate into misty barriers like with other domains.
OK, so Spelljammer operates on the scale of ships travelling one million miles per day (for the benefit of Ravenloft fans who do not know this) and Spelljammer crystal spheres are measured in "Spelljammer Days" (or SJDs) with that being a bit similar to a Light Year (LY). Just as a real-world light year is the distance light travels in a year, a Spelljammer Day is the distance a spelljamming ship travels in a day. If you do not want a simulation of a crystal sphere to be as big as a crystal sphere, all you need to do is reduce Spelljamming Speed inside the "Wildspace Domain".
So long as people on the ships have the sense that they are accelerating to a speed much faster than tactical speed (which is measured in units of 500 feet per turn - hexes in Spelljammer on the Spelljammer combat map) spacefarers are not really going to be able to figure out the exact speed of the ship.
You could even do some sort of weird "Fantastic Voyage" thing where a wizard tried to cast a spell on an entire crystal sphere and the magic went wrong and the inside of the sphere got miniaturised and is now the size of a crystal ball (or something else similar to the
palantir from Lord of the Rings). Ancient Netheril created
10th-12th level spells and the reversable spell "Proctiv's Breach Crystal Sphere / Proctiv's Seal Crystal Sphere" works on an entire crystal sphere, so perhaps a Netherese lich tried to recreate Proctiv's spell and seal Realmspace (or another crystal sphere of your choice) to keep out the "strange outsider creatures" that early Netherse spacefarers had fought and killed and instead of the spell working as intended, it sucked him into a Ravenloft domain that is a dark
orrery of what Realmspace actually is. You could do this with a bespoke crystal sphere, if you wanted total freedom to design planets and asteroids. But if you go off of an existing crystal sphere, you could kind of copy what Forgotten Realms did with
Evernight (the dismal echo of Neverwinter). Having said that, doing something directly with Realmspace would be a tripple-crossover so there would be a lot more potential to "get something wrong". Maybe a brand new crystal sphere (which can be a relatively small crystal sphere, instead of a stupidly large one) would be a good choice for you.
doctornecrotic wrote: Wed Sep 10, 2025 2:56 pmOr rather, the black clouds as referenced in CGR1 (how the mists manifest in Wildspace)
You need to be a little bit careful here as there is something else called
The Black Clouds in Krynnspace. They occupy a lot of the orbit of one of the planets there, and burn people who lean over the edge of the ship. They also cause memory loss (which might actually be useful if you want to allow people to escape from your domain back into the Spelljammer setting...and go for the "you do not remember what you did" angle).
In CGR1 The Mists of Ravenloft (innnnnn Space) are described like this:
CGR1 The Complete Spacefarer's Handbook page 14 wrote:The Mists of Ravenloft can appear even in wildspace, where they take the form of a jet-black cloud that arises before the victim vessel. Ships that sail into Ravenloft through the Mists are as trapped as any other entrant to the demiplane.
(I'm going to have to put a disambiguation page on Spelljammer Wiki, to let people know there are different types of black clouds.

)
Another option is you mix together both types of "black cloud" and have a powerful wizard in Krynnspace rise to Netherese-levels of power (long before the time of the Wizards of High Sorcery and the "Test" they make spellcasters take to be allowed to cast high-level spells) and try to cast a spell on the entire crystal sphere. There is actually a world called
Zivilyn that is currently an airworld with boulders in and is said to have once been a terrestrial world that "blew up in it's own cataclysm". Those Black Clouds of Krynnspace are around the next world out (a world called
Nehzmyth which only appears in Spelljammer lore and not Dragonlance lore - Dragonlance has a different world called "Shinare").
So if you were to go into ancient Dragonlance times and have some rival spacefaring wizards clash and one lot of wizards suck the world Zivilyn out of another crystal sphere and drop it in Krynnspace (where it does not belong) and the other group of wizards try to summon a big "black cloud" to consume Zivilyn and "get rid of it" that could actually be some sort of epic spell that is "modifying the Mists of Ravenloft" and causing them to be a permanent thing in Krynnspace. And then, of course the gods (or the spellcasters of Nehzmyth) zap Zivilyn and blow it up...but when Zivilyn passes through the black clouds the "victors" loose any memories they had of being spellcasters and devolve into talentless humans. (And eventually both civilisations are gone from memory and Krynnspace settles down into what it is today.)
Something like that could give you a number of hooks to work off of...and could also be "older than most of Ravenloft" and left forgotten in the wildspace paraphernalia in the "Antisolar Institute" in Blutespur. "An amazing orrery of what seems to be Lord Soth's crystal sphere." (Again, you do get the tripple-crossover problem. But there is far less Dragonlance canon that interacts with Spelljammer.)
doctornecrotic wrote: Wed Sep 10, 2025 2:56 pmNow, what's the central linchpin for such a cluster? I'd imagine some manner of port/hub akin to the Rock of Bral, Tarvin, Dragon Rock, etc. But, its twist would be sailors and travelers slowly abandoning it to economic failure. I'm imagining a Darklord that would have wanted market domination, destroying rivals to promote his own company, resulting in a failing hub area within a sphere that doesn't see much travel anymore.
Back in the day, when real-world Cornwall was not making a lot of money from legal seafaring, there was talk of "wreckers" who would put out light-houses and put up false lights to intentionally cause ships to crash, so they could steal cargo. And there was a lot of talk of "pirates" and "smugglers". I think some of that is Parlament in Westminster wanting to squeeze more money out of people than they want to pay. But this is the general sort of thing that happens when ports start to collapse.
There is also the
"Custom of the Sea", where people have no food and are all going to starve and choose to have a lottery to pick someone to be killed and eaten. Again the Parliament in Westminster tried to bring murder charges against sailors doing that.
I would be a little bit careful about both of those things, especially Cornwall, which has an independence movement. I don't know how much said about Cornwall is "fair" and how much might be kind of negative propaganda designed to make Cornish people look like bad people a few hundred years back to justify tax hikes. So don't pile on too much of the real-world stuff.
doctornecrotic wrote: Wed Sep 10, 2025 2:56 pmMaybe he exploited folk tales of horrible monsters, now made real through a curse... and thus the starry shores are now actually dangerous. Perhaps, taking from Bloodborne, an "Insight" mechanic allows one to better see the monsters at the cost of one's sanity.
You can easily ramp up the threat of wildspace monsters in Spelljammer. There is an adventure called
The Sea of Sorrows, that features a
that is causing havoc for local people.
And, if an asteroid was not as careful as The Rock of Bral, there could be large numbers of scavvers that come in and try to eat spacefarers on the docks and on the ships that come to dock at the asteroid. You could even take inspiration from the
Sharknado movies and have a new type of scavver (a "mist scavver" maybe) that has a bit of a fog cloud effect and that is brazen enough to swim up into the streets of the asteroid city at night, looking for drunks and people sleeping rough, that it can grab hold of in it's jaws and drag off the edge of the asteroid, to eat outside the port's air envelope.
A plague of doppelgangers, who "replace" spacefarers and then arrive at asteroid ports attempting to "replace" the people living in the ports is another option (where things might play out a bit like in the remake of
The Thing.
You have plenty of options for horror without the obvious neglect of the ruler of the city-port needing to happen.
doctornecrotic wrote: Wed Sep 10, 2025 2:56 pmHelmsight exists in SJ already, so why not "Helm Insight"? Use of this special helm could warrant saving throws (perhaps Madness), resulting in the double edged sword of damaging knowledge.
Helmsight kind of lets you see through the ship, as if the ship is your body. And helmsmen feel flashes of pain when the ship is damaged, as if they have been hurt.
If you want to take it further than that, there is
The Batship (a bespoke ship where the helmsman is locked in a box and deprived of their sense of self). Personally, I think The Batship jumps the shark a bit and you should not go that far.
But let's pretend that the
"sympathetic magic" element of Spelljammer means that the helmsman of a hammership is kind of thinking of flying through space like a hammerhead space creature. And if that effect is ramped up for your Mistspace Domain, then maybe they slowly loose a bit of their humanity as the long periods on them helm have them seeing themself as a gigantic space creature being periodically attacked by other space creatures.
doctornecrotic wrote: Wed Sep 10, 2025 2:56 pmThis begs a question, if the central hub is surrounded by danger, would that leave the rest of the cluster pretty cut off too? What other "worlds" may exist that would have "traded" with this hub at one point (even if it's probably False History)? I'm not certain if this is a project of its own yet, but perhaps it has potential... and if it does, it would be cool to see FoS and Piazza crossover.
You can not really have "Spelljammer in Ravenloft" with just one port. You need ships to go out and do stuff and come back later with trade goods. You do not have to show it all in a single article, but a lot of the horror needs to be fighting against undead pirates and getting caught in sargassos and being surrounded by scavver who want to eat you. That is why, if you really need to keep things on the small scale, I would say to go with a miniaturised crystal sphere.
And, if planets are a problem, you can either just have asteroid clusters...or you could have a planetary system where all the planets and moons have fouled air and the asteroid communities are trying to hang on. Try to think about the basis premise that makes the Mistspace concept easy enough for Ravenloft, but that also allows you to have people use spelljamming ships to go from one Ravenloft-like environment to a number of different Ravenloft-like environments.