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MIM - WH40k Necron Core

Core Libraries for Necron Faction mods from MIM.

The mod itself doesn't give you any new functions, but it is necessary if you want to play Necron sub factions.

By adding this mod to your mod list, you will have;


Total 17 New HAR / Non-HAR based races will be added. More specifically, Canoptek Scarab Swarms, Canoptek Spyder, Warrior, Immortal, Flayed One, Deathmark, Lokhust Destroyer / Heavy Destroyer / Lord, Skorpekh Destroyer / Lord, Hexmark Destroyer, Lych Guard, Triarch Praetorian, Plasmancer, Lord, Overlord. Some designs remain as an rust, old version, but they will be updated soon or later.

Race system works based on your mod list;

In case of vanilla, it works as vanilla race names "Necron". The race has apparel restrictions.
With HAR and without Biotech, it works as HAR race. Huge starting time remains same.
With HAR and Biotech, it works as vanilla race with Xenotype of "Necron". HAR won't intervene to this race.

There are several known issues though, especially when you don't use HAR;

Starting new scenario from Necron sub faction mods sometimes forcefully give apparel to Spyder as well as foods. In that case, if you open the Gears tab, you may see transparent screen. Don't panic, and click to drop all inventory and apparels. That will solve the issue. I'll keep trying to solve this issue as well.

Also, due to the narrow name pool, you may often see the error related to pawn's name - ignore it for now.

Lastly, their body size not properly scaled yet - I need to fix some coding for Vanilla, and add few more genes and Xenotypes for Biotech.


To increase your Necron Army, you have to finish necessary researches and digging up your fella Necrons. By right clicking them, you can activate deactivated Necrons as your new pawn.


Death is only temporal for Necron, and you can produce Reanimation Protocol easily and cheaply. This works as a resurrection serum for Necron races and only. But be aware, they still face with Resurrection aftermath for a while.


It is artificial material of Necrons and you may need a lot of them for your playthrough. Luckily, your Canoptek Spyder and Plasmancers can reproduce this resources from Steel or Plasteel.


Most Necrons are useless except battle - Biotransference disables most of your pawn's needs and social interaction, as well as all but violation worktype. Some of Royals may have a memory of Needs, and they might be acting as if they have the needs.

Crafting / Research / Construction, etc are heavily depended on Canoptek, more likely Scarab Swarm as a basic worker, Canoptek Spyder as early period researcher and reproduce 1 Scarab per a day by using ability, and Plasmancer is the only one who can research and craft all the Necron technologies.

Xenotypes for Necron (no functions, but just to avoid NPC necons come with other Xenotypes in case if you have Biotech. But this is only intended them not to have any other Xenotype since they are physically impossible to be genetically modified.


If you have Biotech, all Necrons who have xenotype of Necron will be spawned with ability called "Living Metal". You can cast this ability to self once per a day. Using this ability will remove one of the each following wound hedffs from your pawn - Blood Loss, Cut, Stab, Bruise, Bite, Gunshot, Scratch, Burn, Surgical Cut, Crack, Crush, Chemical Burn, Shredded, Frostbite and Missing Body Part.

Missing body part is still kind of messy since it only can remove one hediff per casting, so if your pawn lose their hand, you can only recover hand but fingers will be remained as missing part.

If you don't have Biotech, open DevMode and add the skill to your pawn.


Basically, Necron buildings, weapons and Necrodermis are not possibly built / crafted by baseline pawns. You need Canoptek Swarm, Canoptek Spyder and/or Plasmancer to produce and build them - Canoptek Swarm can build all the buildings and craft Necrodermis / Reanimation Protocols. On top of that, Canoptek Spyder can do lower level researches and crafting weapons for Warriors / Immortals / Flayed Ones. Plasmancers can do everything as per they are the masters of Necron technologies.

To properly use this mod, you have to use at least one of this sub faction mod.

30/6/2025: 1.6: Fixed compatibility issue with VEF.


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