An idea I've got for a Rogue Trader campaign is to take several humans who have gained immortality (via different means) and throw the players into the mix just as the immortals plans are coming into conflict. I just need a bit of help with the specifics.
What are the immortals after ?
I'm thinking of having some mcguffin that all of them are after. Though I need some ideas. It needs to be something important enough for them to want to find, but not important enough to attract attention that makes the players useless. For example, if the mcguffin is a mostly functional STC, I don't see the players being able to do much once the Calixis sector Ad-mech hear about it and send fleets to retrieve it. And I'm planning to have them find out what the mcguffin is well before they find it.
I also have some questions about some of the immortality methods:
<The Biomancer>
Looking at the biomancer powers in Dark Heresy, it seems that preventing their body ageing would be the easy part of becoming immortal that way. The hard parts being avoiding corruption or death from phenomena. But lets say that a psyker did manage to live that long and remain pure through a combination of skill and luck:
- Which groups would treat the psyker significantly differently to how they would treat a regular psyker ?
- What would the psyker have to go with to prove that she was still pure ?
- Would she be able to become an Inquisitor ?
- Would any of the above answers change if she made Inquisitor before the immortality became obvious ?
<The Tech-Priest>
As a general rule, the higher someone’s rank within the Ad-Mech, the less flesh they have. To the point where they are part of a brain in a jar, with a purely mechanical body. So for this method of immortality, the person in question has gone one step further and replaced his entire brain with circuits.
- Is this over the line into "definitely an AI" in the eyes of the Ad-Mech or does it still exist in a grey area ?
- Assuming he avoids auspex scans*, how long will it take for the Ad-Mech to notice that he has lived for far too long and start asking questions ?
- If he doesn't cause trouble and keeps turning over useful things he finds, will they care ?
- Since his mind is now data on a computer, he can upload himself into a new body when the first one fails. What happens to his soul when he does ?
- What if a pre-made backup is loaded instead ?
- What if he copies himself into multiple bodies at a time ?
- Can this be done with existing Imperium technology, or would he have to use Archeo/Xeno tech ?
*Why should I see you in person when we can have the same communication over Vox, without having to worry about making sure we don't kill each other, or wasting time travelling that I could use for my works. ?
If you're worried about being spied on, I can get a servitor to run a hard line that won't be intercepted. Also, my holds are auspex shielded because I don't want anyone stealing my secrets.
<Dark Pact>
Someone makes a pact with a daemon. In return: Immortality. I have an idea where I'm going with this one, but I would still appreciate any ideas about non-stereotypical worshippers of one of the chaos gods that could work here.
<Halo Device>
I've got no questions about this one.
Are there any other ways are there for a human to gain immortality that allows them to be active in the materium ?
Ascension to daemonhood/daemon prince doesn't count, because they exist mainly in the warp, not the materium.
Stasis pods/SM Dreadnoughts/Cryo-sleep don't count as the recipient spends most of their time inactive.