In case there are people who are still having trouble playing the Sex & Glory games in Windows, I discovered that an old, appropriate version of Palemoon portable can be downloaded from the Internet Archive.
64-bit -
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32-bit -
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The reason that version works is because it does not enforce strict origin javascript execution (which is what gets disabled on Chrome when you disable web security) AND it doesn't have support for WEBP, so all the images show properly because the javascript code tries to swap out the image references to webp for modern browsers that support it.
You can just download that, self-extract it to a directory, run it, and open the main html file for ripped S&G games, and you should be good to go.
I also figured out that you can make modern Firefox browsers play the games fine, which makes this possible on Linux or Mac, too.
You have to disable strict-origin execution and webp support. It is advised that you don't do this in your main browsing profile as it's not considered safe. You can either
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or install something like Firefox Developer Edition, which will automatically manage a separate profile.
Once you have the opened your new profile, you enter "about:config" into the address bar. Once you click the "accept risk" button, you should be given a search box to find preferences you can change. Type "strict_origin" in the search and it should come up with "security.fileuri.strict_origin_policy" which you should set to false. Also search for "webp" and set "image.webp.enabled" to false. If you want, you can also disable autoplay for all sites in settings if you want the music in the games to autoplay. This profile should now have no problem playing the S&G games.
EDIT:
Just realized that some of the game rips (like 13 Rooms) needs WEBP support, so the old Palemoon browsers won't work for those. You can use the modern Firefox method I mentioned and leave/toggle the WEBP support to true. For Windows, there is also a modern
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you can also use if you don't want to muck with the profiles on your main installation.