Grand Fleets demo rules

Majestic 12 games has these demo rules for their Grand Fleets miniature wargame. My group has played these and really enjoys them. Majestic 12 explains:

Grand Fleets is a comprehensive miniatures game of dreadnought-era naval warfare. In addition to rules for everything from ships to aeroplanes, Zeppelins to submarines, the rulebook includes:
Data cards for over 120 ships, plus guidelines for converting any ship of the period to game values; Eight scenarios encompassing conflicts from the Sino-Japanese War of 1894 through the opening salvoes of World War Two, including several variants; Fifteen pages of weapon data, covering all major gun and torpedo models in use through 1939, over 200 aeroplanes, and more than 20 airships; and Optional rules for flotillas, night-fighting, smokescreens, and more!

TIERRA Y LIBERTAD rules

Arofan Gregory has posted TIERRA Y LIBERTAD, a set of free fast play wargames rules for the 1910 – 1920 Mexican Revolution.

A Spanish Crossfire

A Spanish Crossfire is a set of modifications for playing Crossfire game set in the Spanish Civil War, and in the Rif War.

Tripoli: Blood and Sand

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Battle For 2mm Earth

Battle For 2mm Earth is a set of free wargames rules for pre WWI wargames in 2mm scale.