I'm a big fan of the Folio series. Amazing cover art, strong adventures and compatible with 1e and 5e, so OSR and new D&D in the same neat package.
Roslof Keep is the setting that keeps on giving. The Bane of Roslof Keep is the second part of a six-part series for characters of 11th level plus. Pretty much name level adventuring.
The Curse of Roslof Keep Campaign revolves around an adventuring company moving to the city of Tiefon, capital of the great eastern power of Thalonia, where they will match wits against other great adventuring companies as well as the intelligent dungeon known as The Infernal Machine. This dungeon is laid out in 6 levels, with a Folio dedicated to each one.
Folio #21 will provide the adventurers with access to Level 2 of the dungeon as well as new monsters and even gaming concepts in running a high level dungeon adventure. Dungeon details include 2D standard 'blue' hex maps as well as fully 3D renderings of Level 1. A gazetteer will give background on all the special events of Level 2 of the dungeon, and includes a new monster designed specifically for this campaign. It also features a fully removable stand-alone cover, and two booklets (gazetteer & adventure).I need to find more time to game. Shit, I need to get a campaign up to name level.
PDF buy-in is 10 bucks. 20 bucks get you the print plus PDF.