This post is a link to a Google Workbook that has a list of all of the runes I’ve found in the game so far (36) and links to youtube videoes on where I found each of them. I did play as an Elf Mage and I did hear there may be some class specific runes that I didn’t get? But what I found is here.
If you cannot access the google workbook please leave a comment because it means settings need to be changed. Thanks!
Google Workbook is here
A list of what can be found in the workbook so far is shown here: