AndrewGPaul wrote:
There's probably some high-ranking or ambitious members of the Necromundan Houses on other planets, but not many.

Why not use the miniatures and invent your own gangs?

Duskweaver wrote:You could say that your world's population is descended from the survivors of a veteran Necromundan IG regiment who were retired and granted settlement rights on the newly conquered planet. We know from official fluff that this sort of thing happens in the Imperium (usually at the end of a successful crusade).

You'd have to make sure the timeline worked out (IIRC, not all the 'modern' Necromundan houses were around centuries or millennia ago), and some houses might only be superficially similar to their Necromundan antecedents due to genetic changes over the generations (e.g. your 'Escher' descendants might still be matriarchal, but without the weird parthenogenesis stuff - it would just be a cultural trait rather than a genetic necessity). In fact, the houses on your world might not be genetically distinct at all, but just a cultural holdover from their original birth-planet, filtered through years of service together in the IG and then centuries on a new planet. Maybe all-female gangs call themselves 'Eschers' because some old myth claims that there was a great warrior-woman called 'Escher' back in the Before Time. Maybe those with an aptitude for technology are nicknamed 'Vanns', after the legendary 'Vann Saw', who once built a suit of power armour out of a box of scraps in a cave. And so on.

 chromedog wrote:
Hiveworlds AREN'T "deathworlds" though - hellish as they are.

Necromunda ISNT the only Hiveworld - there's at least three others named in the fluff (NOT counting Terra, which also counts as one).

"Necromundan gangs on other worlds" not so much. It takes money, power or influence to get off-world and hive gangers tend to have none of that.
Hive Spire gangs with a similar heirarchy in other hives on other hive cities and worlds, of a certainty.

Even with a similar look. None of it is exclusive to one planet (or if it was it would never have left earth. I mean, hyper-religiousity culties who like hoods and burning stuff, roid-ragers, matriarchal societies, etc. ALL of those have shown up in human history on this planet.

 AndrewGPaul wrote:

 chromedog wrote:
Hiveworlds AREN'T "deathworlds" though - hellish as they are.

Necromunda ISNT the only Hiveworld - there's at least three others named in the fluff (NOT counting Terra, which also counts as one).

"Necromundan gangs on other worlds" not so much. It takes money, power or influence to get off-world and hive gangers tend to have none of that.
Hive Spire gangs with a similar heirarchy in other hives on other hive cities and worlds, of a certainty.

Even with a similar look. None of it is exclusive to one planet (or if it was it would never have left earth. I mean, hyper-religiousity culties who like hoods and burning stuff, roid-ragers, matriarchal societies, etc. ALL of those have shown up in human history on this planet.

Many more than three. Although which three are you thinking of? Necromunda, Armageddon and ...?

At least five are or were Space Marine homeworlds, not including the Imperial Fists recruiting from Terra and Necromunda.

The definition of a Deathworld is a planet that is too dangerous for normal human habitation; Hiveworlds don't count because they didn't start out as such - they've been made that way by the population itself (although Krieg blurs the line somewhat).

Yes, you can come up with justification for having outposts of the Necromunda hive gangs on other worlds. It's just less interesting, IMO, than inventing something new.

 Nerak wrote:
Generally speaking the spire of a hive world reaches above the clouds so up there the sky is always blue and the sun always shines (more or less). Think of it as if you where living on top of mount everest.

In 40k anything is possible. There's cities floating on water, cities that walk (check out Ambulon), cities inside volcanoes, cities full of monsters, various xeno beings hiding around with strange powers, cave men and so on. The democracy part is uncommon but not unheard of. it comes with a certain drawback. No matter the government of a city or a state they are answerable to the planetary governor or (as in the case of necromunda) to the sector governor. However, most planetary governors are only really interested in meeting the imperial tithe (IE: paying their taxes and providing soldiers for the imperial guard) and the capture of psykers for delivery to the black ships. Planetary governors may take an interest in the state of the Planetary defence force as well as the political situation but that's usually about it. If tithes are not met the Imperium may declare the world to be in rebellion and no one wants that to happen.

As far as your ideas for paradise hive and such go, then just go nuts. Pretty much anything is possible. There's entire worlds dedicated only to various forms of pleasure. A hive constructed to have mind altering drugs in the vent that make everyone experience the world as pretty wouldn't be impossible. A hive with an enormous forcefield that expunges waste outside of it and has the inside in a perpetual state of beauty is possible. Cities that's only aware of their own existence is possible if a little weird. If a world mapping satellite could pick it up from orbit then someone would probably come knocking. Maybe a hive that had some catastrophe in the past, was left abandoned and restored (without the planetary governors knowledge) after millennia of work could function. Hive come with a problem of food supply, lots of it commonly comes from trade or off world shipment (from nearby agri-worlds). I guess one with great hydroponics facilities could maybe pull it off. You could make a hive that's the pinnacle of law and order with almost no gangs active if you so desire, it's not unheard of. You could even have one where the people that live at the bottom are using plate armour, swords and bows fabricated from the metal around them who just assume the world is made of metal, never knowing that their actually inside a hive. If you want more on that particular idea then look into the ratskinns of necromunuda.

Think of 40k as your playing field. There's a few guidlines. The nobles rule, psykers are shunned, the planetary tithes must be met and the ecclesiarchy are insanely powerfull. Other then that there's very little limitations.