Go for it! the old rogue trader book, mentions vampires in the 40k universe.

Now i wanna see a blood angel vs a vampire in deathwatch.

Agree, even the 3d ed of WHFRP, wich i dont like as much as the other two becuz of,them bones (dice) has some nice chaos sourcebooks. But thats me, ill get anything chaos related.

There's (plague) zombies, blood is a powerful paraphernalia for Chaos rituals, and we have entire Marine Chapters full of blood-drinkers.

I could easily see how more "traditional" vampires fit into this world, if you don't necessarily pull the most obvious copy of Dracula but give it a bit of a twist to make it fit into the setting. Countess Bathory anyone? Quest for immortality?

The issue with that is Chaos Gods hate vampires, each for different reasons.

Khorne: Vampires take blood that is rightfully his.

Nurgle: Never get sick.

Tzeetch: Never change (age)

Slaneesh: Eventually they become numb to stimuli

A long time ago I wrote up a vampire system that was created by a warp modified blood virus.

I think it depends on how you introduce it.. You could say a Khornate vampire needs the blood because the sacrifice lies in the consumption. After all, what would Khorne actually want? Does this Chaos God have a physical need for this bodily fluid, or is it not rather the emotion associated with spilling it?

Take the World Eaters, for example - the one Chaos Legion whose very battlecry is "Blood for the Blood God":

"Angron's warriors cut a bloody swathe across the galaxy towards Terra, drinking the blood of their victims and taking their skulls in honour of their new master, Khorne, the Blood God."

-- WD #263 : Index Astartes

Similarly, for Slaanesh it might not just be about blood in general, but both the amount and the type of blood. A Slaaneshi cultist addicted to the consumption of blood might be compelled to slaughter ever greater numbers of victims, and deliberately seek out different types of humans, even travel from world to world in their personal quest to "sample fresh tastes". I vaguely recall a cool little story in the Tome of Blood about a certain noble ...

For Tzeentch, whilst age represents change, it also represents a one way street and an eventual end of things. Perhaps a Tzeentchian vampire ages much faster than normal humans, but reverts back to a younger self after consuming blood? Essentially, this ensures that they keep changing , rather than just getting older and dying.

Also, the Tome of Fate mentions that people on the Tzeentch-aligned world of Q'sal not aging for some strange reason.

Lastly, Nurgle - isn't it true that blood is the perfect carrier for diseases and infections? I'd say this might be more about one vampire making "more" of his kind, rather than just killing others and drinking their blood, though. Maybe you'd end up with two types of vampires ... I could see one "Vampire Lord" creating a small circle of devoted associates, who in turn need to drink blood as well, but are only capable of creating Plague Zombies. A neat tie-in to an existing / better known creature right there!

It's just what it says in the supplement. Everyone hates vampires, even chaos. I see, and agree with in some cases, your point. A bloodline of theirs are knights, if that doesn't scream Khorne I don't know what does.

It's just what it says in the supplement.

Really? Huh. This might actually be something from GW I'd end up ignoring, as far as my own vision of 40k is concerned.

That being said, I believe there are some few differences between Chaos in WHFB and 40k? I recall Khorne in WHFB actually allowing for honourable warriors and daemons who might actually let weak victims alive, whereas the 40k Chaos Codex rules it straight out, saying that Khorne is happy regardless of where the blood flows from.

I'd have to re-read the details to be sure, but if this is right then perhaps the aversion to vampires doesn't hold true in GW's 40k as well.

I think it's interesting that they're purely hated by everyone. Although they have worked with humanity in the past in the war against Chaos because if Chaos wins there goes their feeding stock as warp tainted blood tastes horrific and sometimes corrupts their bodies if the corruption is high enough.

It's not that Khorne isn't happy blood is flowing, he's upset that it isn't being given to him before he decides where to gift it.

While diseases are carried by blood vampires are immune to disease regardless of the blood's contagens. They do make vampires that need to feed and zombies as well.

Slaneesh just gets upset that vampires prefer to live in the past, bloody and extreme as that might be, rather than go out and experience new things.

Tzeetch just hates that they stop aging, and mutation is difficult for them.

But yeah it's all interpretation and implementation.

It's just what it says in the supplement. Everyone hates vampires, even chaos. I see, and agree with in some cases, your point. A bloodline of theirs are knights, if that doesn't scream Khorne I don't know what does.

Thats more a warhammer thing: the reason is most servants of undead, some vampires amongst them want to turn the world into a world of the undead. ie all zombies, skeletons and a few humans completly in thrall to their vampire masters. In other words a world in wich chaos can has no fun. zombies and skellies have no emotions and reasons to turn to chaos and become corrupted. Same for human thralls. who are to busy being slackjawed cattle to think of worshiping chaos. hence chaos no liky da vampires.

It's just what it says in the supplement.

Really? Huh. This might actually be something from GW I'd end up ignoring, as far as my own vision of 40k is concerned.

That being said, I believe there are some few differences between Chaos in WHFB and 40k? I recall Khorne in WHFB actually allowing for honourable warriors and daemons who might actually let weak victims alive, whereas the 40k Chaos Codex rules it straight out, saying that Khorne is happy regardless of where the blood flows from.

I'd have to re-read the details to be sure, but if this is right then perhaps the aversion to vampires doesn't hold true in GW's 40k as well.

that vampire thing is proably he got from warhammer fantasy.

The thing about Khorne is Old Khorne vs New Khorne rather than fantasy vs 40k. Old khorne was all about martial strenght and honour and New khorne is all burn maim kill.

I've melded them together like this:

Khorne cares not from where the blood flows: it's okay to slaughter everyone in the name of khorne.

Khorne is the god of Warriors and battle : Khorne repsects those of great martial strenght and proud warriors.

This means that if you just go around killing women and babies, khorne will think you are a weak coward and will turn you into a spawn, or have one of his more dedicated folowers despatch you.

I understand it's more of a Warhammer Fantasy thing. I got it from the fantasy supplement after all.

I would see vampires akin to necrons in 40k, in this case, as creatures whose souls are locked firmly out of the warp and have no presence in it. This goes hand in hand with how undead operate in Fantasy (their end goal is essentially "starving chaos"), as well with the notion the chaos gods have that their existence is "stealing" from them. Essentially, it is. It's turning bodies and souls into something that doesn't need, or relate to, the warp at all.