Is there some kind of launcher that lets you shuffle maps between a bunch of different wads?

[⇛Marnetmar⇛]

Say I have a whole bunch of favorite maps from a bunch of different wads and would like to make a "playlist" of sorts. Is there a program that can load multiple wads and specific maps?

[Empyre]

I don't think so, but there is this:

https://allfearthesentinel.net/zandronum/download.php?file=18-in-1v2.pk3

and this:

https://allfearthesentinel.net/zandronum/download.php?file=compendium-v1.pk3

[hobomaster22]

I don’t believe any is doing this. You can put a feature request detailing exactly what you would want in Doom Launcher: 

https://github.com/hobomaster22/DoomLauncher

[Empyre]

You could use Slade and/or Doom Builder (any version) to assemble a wad with the maps you want, similar to the ones I linked.

 

Now that I think about it, I think that back in the 90s, D!Zone was doing something like that in a launcher.  I have a feeling that it couldn't handle custom textures and other stuff like that.