I was hoping to print/buy a poster of morrowind for on the wall, size about 36*24 inch (90*60cm). However, finding any decent size image for this, or a shop that sells posters seems impossible .

I found a beautiful poster, this one: http://emmy-has-a-gun.deviantart.com/art/TES-III-Morrowind-Poster-210874633

Unfortunately, the resolution is too small to print for poster size, and it contains a watermark. I wouldn't mind buying an official poster, but it seems none exist (besides the map)?

Wallpapers are not exactly posters but you could do with them: http://www.elderscrolls.com/morrowind/downloads/

Thank you. Unfortunately, the resolution for these things is too low as well. For an nice poster (format 36*24 inch) you need a resolution of about 7000*10000 I think to print it nice. An none of the pictures have that

I think that's a bit higher than really needed. I once had a 1620x2300 image made into a 50x70cm (19.5x27.5 inch) poster and I'm still extremely pleased with the results and have it on the wall.

That said, I know how annoying these things can be, wish there was a more highres version of http://privat.bahnhof.se/wb462449/ShadowOfTheColossus.jpg