delericho
Legend
That's all true. However I meant "old school" in the sense of 32-page, stand-alone dungeon crawls.
"Sunless Citadel" and "Forge of Fury" were 32-page dungeon crawls. And while WotC marketed them as part of an adventure path, the links between them were so light that they might as well have been stand-alone. (And just as well, really, since they've since reprinted them for 5e without the rest of the path.)