元々は、文明に属し、話し、学び、時が経てば死ぬはずの存在だった者が*1、自らの人生のいずれ死ぬべき運命に抵抗し悩み("obsessed with his/her/its own mortality")、不死となる方法を探していた。
生と死の秘密をマスターすることでネクロマンサーは不老不死に至る。食事の必要も飲み物を飲む必要も無く、睡眠すら不要となる。疲労(tired)はなく、ぐったりすること(exhausted)もない。ネクロマンサーは有機的な生物の死体に生命を吹き込むことができる。, as well as any body parts which have a [GRASP] token or are attached to body parts which do. Corpses must be within the necromancer's line of sight-about 15 tiles-to be animated. Necromancers do this by gesturing; raising of the dead is reported in the combat log:
Fortress Mode †
The dead walk. Hide while you still can!
Main article: Siege#Necromancer sieges
Necromancers can lay siege to your fortress at any stage, including before the first migrant wave. but only if their tower or town is within 20 tiles of your fortress; as such, picking a location within such a distance of a tower is regarded as a sure way to have an extra helping of fun, and can be checked with tab during world gen. Note that if no tower is present during embark, no necromancers will ever arrive. The sieges are structured much like normal sieges, except that the numbers tend to be much larger and much more disorganized, consisting not of individual squads but of masses of zombies coming from every side. The necromancer (or necromancers, if he has an apprentice) himself may or may not arrive with their siege; if they do, and are captured or killed, you can expect to see no more activity from that particular tower. Undead are hostile to everything that breathes as well as to enemy necromancer hordes, meaning that other sieges or ambushes (or, indeed, caravans) that happen to arrive when a necromancer siege is milling about will always result in a battle.
The easiest way to deal with a zombie siege is through the application of particle physics to grind them into nothingness. Anything that obliterates any trace of the zombie will prevent raising; a drop into magma or semi-molten rock or encasing in obsidian are more creative alternatives. The jury is still out on whether slashing weapons are better or worse against necromancer sieges; although they tend to separate zombies into many parts, these parts can all be raised, leaving the question of whether the whole zombie or an arm here and a leg there are more dangerous. The undead that they will bring will be sapient creatures, but if you killed some elephants in a combat exercise and they happen upon them, the danger is magnified.
If you have a vampire and haven't walled him in yet, you can draft him and take a leisurely walk through town, as undead will ignore him (unless attacked), and the necromancer is easy, valid game for a clobbering, if you can find him.
Necromancers that are idle during a siege will occasionally start campfires.
Adventurer Mode †
In adventurer mode, necromancers are most commonly found in towers .I., but can very rarely be found in towns and camps, due to reasons explained earlier in this article. Towers will contain all the necromancers that are part of the necromancer group to whom the tower belongs, as well as a horde of undead. It is possible to become a necromancer yourself in adventurer mode by reading the slab or one of the books containing the secrets of life and death. Both will be found on the tables scattered around the tower, often amongst a pile of other, less useful books. So, becoming an immortal being who doesn't need to worry about petty things like eating, drinking and sleeping and can also raise and control an undead army merely requires you to read some slab or book. Sounds simple, doesn't it? Unfortunately, it isn't. The tower is stuffed with undead monstrosities who would probably like nothing better than to tear your poor adventurer to shreds. If that isn't bad enough, the necromancers to whom the slab and books belong will raise their servants each time you strike them down, if they can see the corpses. So, what can we do to get at those secrets? Well, there are 3 main methods: 1. Storm the tower This is probably the most obvious solution, and is also the most likely to get inexperienced adventurers killed. Once you have become powerful enough, attack the tower head-on, preferably bringing with you an army of meatshields soldiers (who will likely get themselves killed, but will provide a distraction for you). It is advisable for you to lure the undead out of the tower first, away from the necromancers' gaze. This will make dealing with them far easier, and will give you a lot more space to dodge (or run if things get bad). If a necromancer is in the midst of the horde, try to move around so that the necromancer is exposed, then go in for the kill. Proceed until everyone (excluding yourself) is dead. Alternatively, just run into the tower and begin hitting everything like a madman. Eventually, either you or all of the tower's occupants will be dead. Then just take the slab/a book and do what you will with it. 2. Sneaking Since sneaking in the current version basically makes you invisible, sneaking into the tower with a high enough skill and throwing stuff will allow you to kill everyone with minimal damage done to yourself. There is, however, the risk of being spotted, in which case you are advised to run away as quickly as you can. Alternatively, you could try to sneak around the tower and steal the slab/a book without killing anything, but, because of the high density of enemies in a tower, it is extremely likely that you will be spotted, swarmed and killed. 3. Being a Night Creature Visiting the tower as a night creature to whom undead are friendly, such as a vampire, husk/thrall or, of course, a necromancer is by far the easiest way to obtain the slab/a book. Seriously. The undead are [OPPOSED_TO_LIFE], but these night creatures are [NOT_LIVING], so they will ignore you completely. Since undead will not attack necromancers, making a mad dash for the slab/book is also a viable option, but you will risk being killed/severely wounded before you get the chance to become a necromancer. If you are already one of these night creatures, you can just skip gleefully past the undead, read the slab/book and get out. You may also want to have a chat with the necromancers, who are actually quite friendly once you get to know them. In fact, night creatures who are shunned by society will often still be accepted by necromancers, who you can even ask for quests! That is, of course, unless you are an enemy of their group, in which case they will attempt to kill you. Another strategy, which may not always be available but can work well, is recruiting a vampire. Undead creatures and vampires won't bother each other, but the vampire will attack any hostile necromancers present. Once the necromancers are all dead, you will be left with the far simpler task of killing the undead without having to worry about any of the corpses reanimating. Playing as a necromancer As a necromancer, you: don't need to eat or drink, so you don't need to worry about running out of food/water and can get rid of the extra weight such objects produce. don't need to sleep, and you can't get tired or exhausted during, so you'll never again feel the negative effects of these statuses. are immortal, as necromancers do not age. This will ensure that your adventurer will not die of old age if your world goes on until its natural [MAXAGE] is reached (such as if you retire an adventurer and play fortress mode for a while). can reanimate corpses to create undead companions. This can be done as many times as you want, with a small time limit between each reanimation, and only requires a corpse/body part. Becoming a necromancer also freezes your attributes so that they cannot rust or be increased. Therefore, it might be wise to raise your attributes to a high level before becoming a necromancer. (However, this does not seem to be happening in the current version, probably due to a bug).  Reanimating dead creatures 1.Open the actions menu by pressing x. 2.Press p or scroll to "acquired power". 3.Select (→ Enter) "Animate corpse". 4.Now move the cursor onto the corpse(s) you wish to animate, press the letter that they are represented by on the items screen (such as a) and press Enter. Note that you can animate more than one corpse at a time, and that you can also animate corpses that are in your inventory. Animatecorpsemenu.jpeg Besides acting as reusable and easily replenishable soldiers, undead hold potential usage as training dummies for weapons and wrestling. However, note that if you attack one of your own undead slaves, all of your reanimated companions will become neutral and will no longer follow you. This can be useful if you want to interact with civilized society - while a necromancer can still be friendly to mortals, its minions will attack everything in sight. This attack will cause the civilization to label you as an enemy for your undead minions' actions.