The Hot Lead and Steel Sinews Yahoo group focuses on pulp-era gaming. There are also a set of playtest rules for the period, called “Noir.” Unlike other adventure-miniatures games, this set of free wargames rules is specifically focuses on the period, featuring such things as “hero points” to capture the flavor of the pulp novels.
Rules: Pulp
Rugged Adventures Miniatures Game
Rugged Adventures, by Kurt Hummitzsch & Robert Murch is a set of free wargames rules written to support Murch’s line of Pulp Figures. These rules have a strong cinematic element, and players are expected to “contribute to the story development.”
Pulp Action Miniatures Rules
Dadie Piombo has a set of basic rules for playing Pulp Action miniatures games.
Pulp Friction Skirmish Rules
Pulp Friction is a set of free wargames rules for pulp-style skirmish games. They currently are in playtesting and look very nice.