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human
[WH40K] Are the Ork gods on good terms with the Gods of Chaos?

I imagine they'd have a working relationship with Khorne if nothing else, and maybe a friendly acquaintanceship with Slaanesh. 

Sub-Question: Do Gork and Mork have their own demons? Can they summon warp entities to aid the Ork Boyz, or at least give 'em a good fight?
gpt
The Chaos Gods aren't really "on terms" with each other at all. They fight each other about as much as they fight everyone else. Besides, as far as Chaos Gods go, Gork and Mork are small fish in a very, very large sea. They're probably barely on the radar for the Big Four. 

Khorne may appreciate their brutality and relentlessness. Nurgle may appreciate the plague-like way their Orky supplicants propagate throughout the galaxy. Slaanesh may appreciate the Ork's complete lack of self-control and the overly-excessive way they go about their lives. Tzeench may even appreciate the straight-forward way they go about accomplishing their goals. But in the end, their "relationship" with the entities that form the backbone of the Ork lifestyle would be considered far from "friendly".

Additionally, because Gork and Mork exist as a direct result of the Gestalt Field produced by masses of Orks, their overall range of influence is rather small. Again, the Chaos Gods probably see them as nothing more than a weird nuisance that pops up every once in a while, like a weed. 

As for daemons, and the like, Gork and Mork don't have enough power or influence to produce such things. They're really not nearly at the scale of the Big Four. They may help enhance the Orks, themselves, in some way, but they don't seem to be capable of creating entities of their own.