Personally, I do not think WWII is overdone so much as that certain events from WWII have been overdone. Outside of military sims, a lot of WWII games tend to cover the same battles. Game developers in particular seem to have an obsession with the Normandy campaign. This is kind of sad, considering WWII was an enormous conflict, which provides for a large number of potential settings and participants. But since this has not been utilised, it gives off the impression that WWII games are overdone.