PZ8 1950-69 is a set of free wargames rules for using 6mm miniatures to refight battles of the mid to late 20th century.
WWII
Kampfgruppe Ost WWII Rules
Kampfgrupp OST is a simple Hex based Operational level WWII game circa 1944-1945 East front.
Operational Art WWII Rules
Operational Art is a set of free wargames rules for refighting WWII’s eastern front on an operational level scale.
Hunters On The Shoreline 1/600 Coastal Miniatures Rules
Hunters on the Shoreline is a set of free wargames rules for playing WWII coastal naval actions using 1/600 miniatures. It’s available from PT Dockyards.
World War 2 German Aircraft Projects
Luft ’46 is a site that offers a wealth of information on aircraft projects that the Germans had in line is World War II had lasted a year or more longer. Fascinating stuff. I’d like to see some of these show up on a wargames table.