Age of Heroes is a set of free wargames rules for playing skirmishes in the Bronze Age.
The Nauticans Unofficial Warhammer Army List
An ambitious work, this: an unofficial Warhammer army list for an Atlantean army called the Nauticans.
Free Steam Mecha Model
Toposolitario has uploaded a terrific free paper model of a steam mecha. It comes in several colors and varieties and would fit in with a steampunk, Weird WWI or Weird WWII theme.
Dungeons of Darkness Print and Play
Dungeons of Darkness is a free solo print and play game about delving into a dungeon and returning with the treasure.
Making A Skull Cave
Terrain Thralls has an illustrated tutorial on making an impressive Skull Cave terrain feature.