[Coldsaturn]

Avoid the comments, of course, but this is the complete story from chap 1 to chap 8 of Under Deepspace. Useful if you want to check some parts out without actually playing the chapters again.

Definitely put a pin on: are they simply immortal, or did they get immortality through something related to their planet?

"there was definite mention of looping"
There was!
I'm resisting sending you more world lore stuff, but I shall wait patiently for you to finish the main story and read the Anecdotes/World Underneath texts.

"Are.. are evols a symbiotic thing then? Not a mutation, but a graft?"
They are described as a gene, so it is an evolutionary thing. We don't know how they came to be though, if it's because of gene manipulation or if they just spontaneously appeared. 
My point was more that the way a character feels and embodies their evol is different from person to person. Some of them are at such odds with their power that it feels like an external object forced in.

Raymond is relevant both for Rafayel and also for Zayne. Interesting dialogues were had that day!

"I admit, I am still hesitant to go through those stories until I get through the main story"
That's totally fair! And once you're done with chap 8, the other three sections of main story we have are way shorter (Long-awaited reverly has two chapters, prologue to tomorrow 3, homecoming wings 2), and they'll all be open to you because your profile level only stops you from accessing the last chapters of Under Deepspace.

We're all hungry for new main story content, hopefully they won't have us wait too long. All the cards and myths etc. do keep on building on the lore and world, so it's not time wasted while waiting.

"we can sit on it (throne) together"
Yeeeeeah not relevant at all