Something to add to this if you bought a game second hand back in the day it would sometimes come with no book, no box just a cartridge. We got a lot of games second hand and very rarely did they have documentation
all these retro style games that are like "NO tutorials NO handholding" apparently forgot about the little books that used to come with your game that detailed all the mechanics, controls, special moves, lore, maps, collectables, means of unlocking additional content, character bios, etc
It looks like Morrowind may have had an official Cafe Press page, and it is still up 22 years later. One of our editors ordered a mousepad from it, we will let you know if it actually arrives.