So, we were playing a long, several year ongoing campaign with characters growing from mere acolytes to the ascended-level badass inquisitorial party.

The setting for our campaign is the isolated by warp-storm from the Imperium sector. Sector is particularly young and has VERY strong Rogue Trader presence (virtually all the nobility is at least related to one of dozen rogue trader families trapped here).

On the other hand, Inquisitorial power here, however strong traditionally, actually quite low. Before initiation of our group's inquisitor, there were only three fully authorized inquisitor, one for each of major Ordos. Every bit of power the Inquisition can lay its hands on, every bit of political leverage, counts.

Lately, our Inquisitor got the opportunity to secure himself quite a big and secret estate and it was decided that it is a great idea to create here an inquisitorial installation.

We have a support of an isolated cult of Mechanicum (actually, the whole cult of Omnissian Apostates, praying to the Emperror not the Omnissiah), which, in exchage for protection and shelter, agreed to build anything we will need here.

I guess it is a good place to hide and secure some artifacts too dangerous to keep at our ship (yeah, we have a local Battlefleet cruiser on our hands as a base of operations, thanks to some political machinations).

I was thinking it as a base for our acolyte network.

Maybe, manufactorums to have them supplied with some basic equipment.

Of course, librariums with whole armies of adepts, for research and investigations.

Training facilities for our agents.

Acquire Imperial Guard regiment for protection.

What else would you have at inquisitorial citadel if you had a chance to build one? Any ideas, even most ambitious ones helps.

Our Ordo Malleus Inquisitor is somewhat puritan, amalathian type, grown from cleric. A warrior, renowned both for his martial skills and pure, fanatical faith.

P.S. sorry for my english, not my first =)

traps, automatic defences, army of servitors. If you have a sect of the mechanicus, you'd probably have skiratii aswell, maybe armoured fire support, depending on the size of your facility?

Protection of the installation is not an issue. We have an Imperial Guard regiment, a starfort above, skitarii tech-guard etc.

Main question is: what could be done here to enhance power of the Inquisition in the sector. And power of one particular Inquisitor against what enemy lies beyond, within and without.

the ability to spy on people, get a bunch of astropaths so you can scy / send messages etc. See if the mechanicus know of a way to get messages across the sector in a more reliable way than astropaths if possible. What naval assets are available throughout the sector? A battlefleet cruiser is capable of dealing with all but the most advanced rogue trader ships, especially when the admech "tuned" it up a bit.

Rogue traders will listen only to money or firepower, so bringing both is advised. beyond that, there's not much you can do against rogue traders, they have complete freedom and stand on the same level as an inquisitor. If you want to get rid of them you might want to find something to taunt them with so they go on a suicide mission to retrieve it

Rogue Traders themselves are not our enemy. It's just there are too much of them, trapped by warpstorm in the isolation of the sector. What could be more dangerous than bored rogue trader?

Much bigger problem is Iron Warriors battle barge marauding the sector, for example. Or massive Tau fleet neighbouring the sector and even having a foothold inside it. Or vendetta between two powerful rogue trader alliances almost dividing the sector in half and putting it on verge of civil war while each of these alliances have much more powerful fleet than Battlefleet, which was heavily battered during Tyranid invasion not long ago.

Despite being imperial sector, Imperium has little power in our setting.

Astropathic hoir seems like great idea, I'd use that.

I was thinking of asking Schola Progenium to establish an isolated Scholum at this installation, to train acolytes.

Complete self destruct systems and data purging protocols.

Protection of the installation is not an issue. We have an Imperial Guard regiment, a starfort above, skitarii tech-guard etc.

Main question is: what could be done here to enhance power of the Inquisition in the sector. And power of one particular Inquisitor against what enemy lies beyond, within and without.

The Marines Errant probably thought this way until this happened

http://wh40k.lexicanum.com/wiki/Fall_of_Vilamus

The marines errant didn't have a starfort in geostationary orbit though XD

I believe those things are capable of obliterating moons with an onesided broadside attack. No fleet will be able to get close enough for orbital attacks untill they destroy that fortress.

The marines errant didn't have a starfort in geostationary orbit though XD

I believe those things are capable of obliterating moons with an onesided broadside attack. No fleet will be able to get close enough for orbital attacks untill they destroy that fortress.

"An open battlefield is nothing but a death trap - in war any visible target is a casualty no matter how well protected it may be"

yes, when chaos brings in multiple battlefleets to destroy the station, then you know you messed with the wrong **** anyways anything less than that won't bring it down, so I don't really see the problem with it

The astropath choir was a good idea.
Advanced medical facilities. A prison, perhaps with at least a few psy shielded cells and interrogation rooms. Psy and regular shielded containment for dangerous artifacts that can't be destroyed. Secret exits to allow for a stealthy escape just in case, perhaps even a hidden hanger. Despite the guard I'd still say automated defenses. Most regular humans are pretty useless when they run into daemons or other fear causing monstrosities so having some automated defenses might be worthwhile. Hidden hexagramic and /or pentagramic warding and sanctified barriers to make it as hard as possible for daemons and psykers to push into the facility.
Obviously a chapel to tend to all these peoples' souls and to help make sanctified ammo and such.

What sort of planet is it on? Is it an Inquisition headquarters for all three inquisitors or just your ordo malleus inquisitor and his servants?

Storage facilities for the worst most powerful archeotech and xenos artifacts. To be used only in the most dire need.

The astropath choir was a good idea.

Advanced medical facilities. A prison, perhaps with at least a few psy shielded cells and interrogation rooms. Psy and regular shielded containment for dangerous artifacts that can't be destroyed. Secret exits to allow for a stealthy escape just in case, perhaps even a hidden hanger. Despite the guard I'd still say automated defenses. Most regular humans are pretty useless when they run into daemons or other fear causing monstrosities so having some automated defenses might be worthwhile. Hidden hexagramic and /or pentagramic warding and sanctified barriers to make it as hard as possible for daemons and psykers to push into the facility.

Obviously a chapel to tend to all these peoples' souls and to help make sanctified ammo and such.

What sort of planet is it on? Is it an Inquisition headquarters for all three inquisitors or just your ordo malleus inquisitor and his servants?

The planet in question is an Imperial World that was planned to become Hive, yet never did. So you could say there is quite high infrastructure while not very high population.

The installation is a headquarters for Malleus Inquisitor and his retinue.

Laboratories, jail cells, interogation rooms, vivisection/ autopsy rooms, incinerator and a rec room. (Can't torture and pull apart xeno scum all the time. )

Am I the only one who would have a chapel dedicated to the God Emperor? (You're all heretics!)

A warded room with an octed summoning circle in case you go radical and need to deal with daemons. (Don't Judge me!)

A training facility, let's call it the "Danger Room". (I took the idea from a mutant leader we purged in the name of the Emperor!)

Astropathic choirs, prison and interrogation facilities that are designed to hold the worst of xenos and witches, proper execution facilities, well organized and expansive library, properly consecrated religious facilities, training rooms, halls and kitchens equipped for a proper party, rec rooms, vaults that can semi safely contain various unsafe things, landing pads for shuttles, trophy rooms to be a show off, labs of all sorts, an armory tech room and garage to tinker with your favored toys, and of course some of the best medical facilities in the sector.

That should be sorta standard stuff for any proper Inquisitorial stronghold, not accounting for tastes and or going above and beyond the pale (summoning rooms, harems, self mortification chambers, teleportariums, art galleries, webway portals) or security which you seem to have already considered.

Thank you all for your input. Going to make this place some kind of agent boot camp to fill the sector with my loyal servants, ears and eyes.

A training facility, let's call it the "Danger Room". (I took the idea from a mutant leader we purged in the name of the Emperor!)

Can we call it the Danger Zone instead.

Okay, but then my X-men reference will no longer work.

Now I want to watch Top Gun again for some reason...

How about the Spiral zone? (Ack 80's overload! )