An add-on to the idea of interactions that I thought of with was the idea of religions or expansion of philosophies that characterize the peoples and how that plays out in their relations to each other.

Yeah, I've been trying to put that off because it (edit : religious thinking ) isn't something I really think about in my own life. I know what the religious tendencies for the various nations probably are, but haven't thought much about how to play off that yet. For the Dwarves and the Elves I have a pretty good idea of how that affects them, but the other nations not so much yet.

My thoughts went in the direction of goblins' attitude for humans. Humans are the creation of goblins, how does that make them feel/interact with humans? What are the power dynamics if any, knowing as well that they have such a short life span brought about by their makers.

Since I've gone with Goblins being based off of dogs (which I just told rd about), I think Goblins still feel a strong desire to trust humans. They're wary of them because of how most humans treat them, but they super loyal to the onces that are nice to them. The flip side of that is that they revere dogs and are very militant about keeping them from harm. Which leads to a lot of violence with other races.

I don't want to color too much of their relations off of the fact that a human made them, because it was just a human. They hold a grudge with him, but he was so magically advanced that he was pretty distant from the rest of humanity by that point.

What is the goblin relation to orcs or half-orcs?

Not great. Most of the Orcs and Half-Orcs live in areas where dog sled teams are common, which is a major deal breaker for the goblins.