On a related note, I used the first of these as my test dungeon for World of Dungeons, and that worked pretty nicely. You can’t just use them right out of the box unless you’re really good at improvising, because there’s only so much detail and context you can cram onto a single page, but they’re an excellent starting point that you can flesh out a full evening’s gaming out of. They’re intended for D&D5E use, but I plan to use them when I try out some other simplified dungeon crawl system.