Some observations -
1) Shadow Warrior
For the music folder, at least from my Steam copy (Shadow Warrior original) - the music files don't need to be named "shadow*.ogg" - the files were named "
Track*.ogg" for me and it just works.
2) You probably already know this but you can put each game in a separate folder. In this example, I have
separate folders for Duke, SW and Blood and it works.
3) For Duke3D, I also copied over DEFS.CON, GAME.CON and USER.CON - I know they're not needed, but there are a lot of beginner tutorials on Duke modding that instructs you to modify these files for easy modding, so I included them.
4) Blood
- At least for my One Whole Unit copy (bought from GOG), the movies folder actually has to be named "movie" - NOT "movies". The latter doesn't work, for some reason.
- LOGO.SMK and GTI.SMK needs to be placed in the root Blood folder for the startup movies to show up. Placing them in "movie" doesn't work.
- I'm not sure if Cryptic Passage follows the above rule, and I haven't played Cryptic enough to know where/when the movies are actually played so I can't really test it, but I placed the CRYPTIC.SMK/WAV into the root folder of the Cryptic ZIP file as well, just in case (in addition to the one already in the "movie" folder). Not sure which one is actually correct...
- For Cryptic Passage, I think the CPSL and Bloodbath maps are also needed?