Lanefan
Victoria Rules
Note that my comments below are referring to truly alien species - Elves and Dwarves etc., while different to us, aren't as 'alien' as all that.
You missed one other underpinning that in some form will in theory apply to every species in existence with a finite lifespan: the need to somehow reproduce. Even species that self-replicate still need the opportunity to do so; and species that require interaction with another (or more than one other) of the species in order to reproduce (e.g. all mammals) also need to do this as well.
Which means, when beaten down, the only true common underpinnings to all lifeforms are the twin needs for nourishment/sustenance and reproduction, in whatever forms those may take.
Lan-"only human on the outside"-efan
Up to this point I think you're pretty much spot on the mark as regards any species. However...I'm going to... spitball a little here ... at Sci-Fi/Sy-Fy that promotes this line of thought.
I've always found this line of thought odd because it seems to ignore the fundamental similarities between humans and aliens. It's a similarity we even ignore between humans and animals, so it's not entirely unexpected that when we see creatures that look totally different than us, we must assume that they ARE totally different from us. But the underlying reality is that aliens probably require the same fundamental elements that humans do. At a bare minimum, food and a life-sustaining environment. Now what qualifies as "food" and "life sustaining environment" may be a million different things, but the reactions to the need, to the possession, to the loss of those things is arguably (and I've never met an alien mind you) fundamentally the same.
When a human is hungry, the hungrier they get the less picky they become about what they will eat. Why would aliens be any different?
This assumes - rightly or wrongly - that the species is by nature competitive rather than co-operative. Here on Earth even those species that are within themselves co-operative (e.g. ants) still compete with other species for territory, resources, etc.; but who's to say that in an alien environment co-operation doesn't extend much further?Aliens may experience lesser or greater degrees of "greed" when they have food, depending on biological and cultural needs and norms but they'll still have them.
This one's on even shakier ground. An alien species might for whatever reason never have thought of the concept of spirituality or soul or much metaphysical stuff at all - particularly if said species is steeped in magic which can in effect be used to explain pretty much anything. Another approach may be that a species simply thinks of itself as there to be worshipped by others.Any intelligent species is likely to currently or historically have worshipped gods
Quite likely, yes, but not guaranteed. The creation of what we know as civilization is simply an exercise in co-operative means of helping further each other's existence - a rising tide lifts all boats. Creation of culture, on the other hand, assumes regular and repeated social interaction within the species, and that's not a given at all particularly if the species is very limited in number and widely scattered.and have created cultures and civilizations. They may have different philosophical approaches to the construction of these civilizations,
Well, Illithids are medium-sized humanoid-built creatures...doesn't mean anything else about them is remotely close to anything we can understand...Now, if we want to talk about truly alien creatures in D&D, we can start with Illithids and Warforged. We could probably even extend the concept to dragons. But anything that fits into the medium size category and has a roughly human build is going to be roughly human in lifestyle out of simple biological necessity.
You missed one other underpinning that in some form will in theory apply to every species in existence with a finite lifespan: the need to somehow reproduce. Even species that self-replicate still need the opportunity to do so; and species that require interaction with another (or more than one other) of the species in order to reproduce (e.g. all mammals) also need to do this as well.
Which means, when beaten down, the only true common underpinnings to all lifeforms are the twin needs for nourishment/sustenance and reproduction, in whatever forms those may take.
Lan-"only human on the outside"-efan