The folk at the Flames of War offer “Open Fire,” a set of quickstart rules for 15mm WWII gaming.
World War II
Air, Land and Sea Print and Play
In Air, Land and Sea from Arcane Wonders, two players battle for control of theatres of operation. It’s a micro game that plays in about 20 minutes and has gotten a lot of good reviews. You can get the free print and play version of Air, Land and Sea at the link.
Bloody Big World War II Battles
Bloody Big World War II Battles is a set of free wargames rules for large scale WWII battles. Each base in the game represents a battalion or regiment. The ground scale is either 3” or 6” to the kilometer. Time scale is 1turn = 2 or 1hrs. One model represents 30 or 10 vehicles / guns or half a battalion or company of infantry
Unconditional Surrender: Case Blue Print and Play Wargame
Unconditional Surrender: Case Blue is a free print and play wargame for two players about campaigns in southern Russia from 1942 – 1943.
Off The Beach Board Game
Off The Beach is Brian Gill’s board game based on the D-Day landing on the Beaches of Normandy in 1941. The Americans are trying to get off the beach and clear the Dog Green section of the beach of German resistance. The winner is the last player that has men on the board.