A subject that has been brought up now and then around here is the question of whether or not there is "more info" for the game world of Terrinoth. Generally the answer is "no" or "not much."
Well, a few days ago I decided that I was finally going to act on my half-cocked idea of running a D&D game in Terrinoth, and one of the things I wanted to do for the game is collect as much background information as I could about the setting. I sat down and went through all the cards and rulebooks and web posts I could find that contained fluff text about the Runiverse (to coin a phrase) in the four major games. Descent, Runebound, Runewars and DungeonQuest. I checked the rulebook from Drakon, too, but it doesn't look like there's any fluff at all there. I used BGG to get a glimpse of cards from the card expansions I don't own and mine them for fluff text too.
What I've compiled is not by any means complete. Firstly the fluff text isn't always as specific as one might like, and secondly I'm sure there are some cards I missed (in particular all the cards from Mists of Zanaga and DungeonQuest, since I don't have either of those.) It is, however, a very interesting read if I do say so myself, and writing this document has helped me to connect many more dots than I had thought possible with relatively little contradiction between the games. I figured some other forumites might also be interested to see this, so without further ado, here it is:
Please note, this is not an exhaustive list of every magic item and character ever named on a card. It is mainly focused on the flavour text and deriving as complete an image of the game universe as I can from that information. Some of the heroes get mentioned, for example, but most of them don't. They are characters who populate the world, but we already know about them just from playing the games.
For anyone who's interested, here is a collected document of all the web-based excerpts about these games I was able to find, including a couple of really old forum posts made by somebody at FFG back in the day, and recently reposted by someone else around here (skunkstrype, I think):
Also please note that there's an awful lot of inference and speculation on my part. I've tried to denote such text by using italics, but I won't rule out the possibility that I got carried away in a couple places and forgot to italicize things. It's a whole heaping lot of cool info about the Runiverse, but it's hardly official word from On High.