Years ago, I played in a play-by-mail game called “Its a Crime.” In that game, you were in charge of a street gang and tried to wrest control of city blocks from the other gang leaders (players). These free wargames rules from the Lincoln Miniature Warfare Society allow you to do the same thing on the miniatures gaming tabletop.
Jim Wallman has posted the Lionel Tarr Rules for Modern Warfare on his website. Jim explains that these were
written sometime around 1959, these are as published in Don Featherstone’s original 1962 book ‘War Games’ – retyped and made available to nostalgic wargamers everywhere.
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.”
Tanks! is a set of free wargames rules designed for playing in your yard.
Save The Whale! is a naval “wargame” inspired by confrontations between Greenpeace and the Japanese whaling fleets.