Along with H.G. Wells’ Little Wars, Sham Battle stands as one of the earliest examples of published miniatures gaming rules. You can see a copy online here.
Lion’s Lair is a free print-and-play board game from Lou Coatney. He describes it as:
A fast-playing, point-to-point game of the British trying to battle their way through U-boats, Italian subs, Italian aircraft, German StuKas, Italian MAS motor torpedo boats, and the Italian fleet.
Maquis is a solo, print and play game about the French Resistance during World War II.
Gazala Gallop is Lou Coatney’s free print-and-play, hex-and-counter wargame of Rommel’s outflanking the Gazala line and taking Tobruk in 1942.
Constantinople is a print-and-play board game tracking the thousand year history of the Byzantine Empire. From the BGG description:
A Victory Point Games States of Siege Series style solitaire wargame covering the millennium-long history of the Byzantine empire, from the foundation of Constantinople in AD330 until its fall in AD1453. The player uses military might as well as diplomacy and outright bribery to keep the many opposing forces at bay for as long as possible. Can you outlive the historic Byzantine empire, or will your efforts be relegated to an obscure footnote in the history books?