Human looking / Humanoid outsiders and non-humanoid inhabited worlds.

[Mr.Sandman]

Would human looking outsiders, like the Succubus for example, look like the native races on non-human inhabited planets? This also raises the question of do the outer planes have worlds of their own? Or world aligned areas? Like, say a Paladin on ancient Castrovel summoned her mount, it would be a Castrovel native celestial animal right? Or Planimal I guess given Castrovels common animals? Just something I thought of after work.

[steven lawson]

Well considering how they had the map of the Material plane, see if I can find a link for that.

http://www.d20pfsrd.com/gamemastering/environment/the-planes

Has the information on the planes, ignoring the 3pp, it would seem as though the vaious homes for demons, devil, angels and so on, being that they are beyond the mortal plane and Starfinder is supposed to be just the space around Golarion, it would reason that Extraplanar beings, such as a succubus to keep with your example, would look something similar to the most attractive form of whatever species summoned it, so this would in turn beg a more important question when you see a being like that, are you only seeing a form that is familiar to yourself or their true form.

For all we know, all extraplanar being are an amorphous condensed form of mixtures of good and evil and only take shape when in contact with another being.

The summoning of a mount would be really interesting, again using the paladin you brought up, I think it could be really interesting idea for it to summon a creature native to your species, so a human would get for example a horse, which on other planets might freak the hell out of xenos because they would have never seen a horse even if the concept of summoning magic is common and well known. You could do a lot with that, how a horse and it's different analogs are seen in different cultures and why certain animals were chosen by the different species.

[Metaphysician]

I imagine most outer planes do have "planet-affiliated areas", at least if you have the knowledge and interest to look for them. A random visitor is just unlikely to find them, or recognize them, unless they actually have awareness of the given extraplanetary culture. The outer planes are at least mildly psycho-reactive, after all.

As for summoned mounts, yeah, I'm inclined to say its summoner-specific. A human whose archetype of a mount is a horse, will get a horse no matter which planet they are on. OTOH, a human who grey up on Akiton, say, might have a completely different archetypal mount, even if they are the same species. So they get a riding lizard, or whatnot.

( Which does lead to the amusing mental image of an alien paladin, whose mount is a celestial giant spider, because hey, that's what everyone on their world uses for war-steeds. . . )

[Obscure citations]

I was actually looking through the list of Animal Companions in PF fairly recently, and there is at least one Castrovel native in that list.