Tarnhelm's Terrible Tome - House rules for OD&D. 40 pages, Pay What You Want
The Raider - New class for S&W. 99 cents.
GeekPunk Geomorphs: Dungeon #01 and #02 - Not actually geomorphs, but complete dungeon maps which can be used for commercial purposes. Pay What You Want
Mystic Pangolin Issue 2 - OSR Zine containing new treasure, monsters, and an adventure. 36 pages, $3.50