The Sword In Mexico is a variant of Larry Brom’s The Sword and The Flame for the Maximilian adventure in Mexico.
The Sword In The Philippines Rules
Larry Brom’s The Sword and the Flame may be as close as anyone has come to a “universal” wargames set. Here’s a variant of the game for the Moro Rebellion and the US Involvement in the Philippines: The Sword In the Philippines
Nighthawks Space War Card Game
Nighthawks is a free print-and-play game of space combat. Remarkably, each player needs just 16 cards.
Warhammer American War of Independence
Warhammer American War of Independence is a Warhammer AWI variant.
Battlefields: From Broadswords To Bullets
Battlefields: From Broadswords To Bullets is a set of free wargames rules for battles ranging from ancients to moderns. They’re designed for 20mm / HO Scale figures.