Blaze Away is a set of free wargames rules for company and battalion level actions in World War II. It’s designed for 10mm – 20mm figures.
War ’44 is a set of free wargames rules designed for play with a seven year old. They would be good as an introductory game.
The Daily Beast has an interesting article about the market for Nazi memorabilia, war collectibles, and how a thrift store in Ohio may just have a pair of Eva Braun’s panties.
Panzerschlacht is a set of free wargames rules for WWII micro armor. The author writes:
This is the World War 2 version of AToS. It uses exactly the same game mechanisms and, apart from the weapon factors, the only difference is that the ground scale has been increased to 1mm = 1 metre to allow for more aesthetically pleasing ranges.
In our games we mark all casualties on the vehicle and figure bases. This allows a paperless game with no book-keeping whatever. By allowing the models to represent more than one vehicle it becomes possible to field an entire panzer division on an eight by six foot table.