On Downtime & Demesnes (Basic D&D version)
by Courtney Campbell
Hack & Slash publishing
print and PDF here
Once in a rare while, an RPG supplement comes out that doesn't need doctoring around with, adaptation or fiddle-fucking - it just works. OD&D (hahaha I see what you did there) is one such product.
I used this book in my home game the week I bought it. Vuk Thuul the oracle sacrificed an animal to his mysterious "divine patron" (a demon lord, hahaha). I had no idea what would happen, and then I cracked open OD&D and noticed there are rules for exactly that!
In addition to rules, guidelines and tables, great ready-to-use content is sprinkled throughout. Whenever Courtney gets specific, his imagination blasts off the page. Sections include "Example Mercenaries & Companies" (5 pages of juicy, weird NPCs I would run any day), "Strange Funeral Rites," "Dungeon Doors," "Strange Inheritances" (could easily kick off your next campaign), "Random Items for Sale at a Bazaar," "Strange Pet Stores" (OK, not sure when I'll use that) and several quirky, memorable sample villages.
One other complaint I'd level at OD&D is that it covers such a tremendously wide range of material, sometimes it doesn't do so with the depth I'd like. The Influence rules could have been delved into more deeply, or maybe explained better. And the "carousing mishaps" table has 10 entries of familiar stuff - compare them to Ben's vivid table here. Ultimately this is a minor complaint, this book was clearly written so it can be used in anybody's game, and a DM who wants to expand these tables to suit his own setting obviously can.
I bought this in pdf and after paging through it once, I immediately ordered a hard copy. It's going right in between Realms of Crawling Chaos and Labyrinth Lord on my old-school gaming shelf, it is that good. If you want to run a sandbox game (and if you don't... what's the deal?) you will definitely make use of this. If you play just about any old-school game or retroclone, there is now one less reason to bring your 1st edition DMG along to game night anymore, just to reference the rules on sages for the twentieth time. Just as well, since mine is crumbling before my very eyes!
Don't waste your RPG lunch money. The marketplace is crammed with unimaginative dreck, impossible-to-run adventure path railroads, retro trade dress porn, kickstarter money grabs and pretentious glossy award-baiting. Buy something you can actually use at the table for once. Who the fuck says the OSR is dead? This is as OSR as it gets.
 - Jeff's "Party like it's 999" post is not the first time carousing is mentioned (Dragon magazine covered this in the old days), but it is the benchmark for the rules that OSRmen play with today.