How it works: I randomly click on an RPG PDF, check it out, and maybe write a little mini-review. I usually write about it while I'm looking at it.
Oh snap! I clicked on an OD&D referee's screen. And it's a damn good one too. Trouble is I'm old and I don't remember who made it or where you can download the thing. Someone help me out in the comments. Don't hold out on me.
Legacy: Life Among the Ruins (2nd Edition) by Minerva McJanda and Douglas Santana Mota. Hey it's only 55 pages! I might be able to say more about... oh no... that's just the handout document. The main game is 305 pages.