Is there an extension/method for saving images only for webpages?

I know there's extensions for saving an entire webpage, but I'm after specifically the images saved on the page (*I'm archiving the Xbox achievements and development pages for a game and want to see if I can save just the images in one go, instead of doing it manually, since there's multiple pages that I need to go through to archive*)

Does anyone know of any extensions specifically for images? Ctrl + S didn't work and with the extensions I try, they save them as html files instead of saving the images as assets for me to access.