World War II Online 1.3 for Mac was available as a free download on our software library. The program is categorized as Games.
From the developer:
World War II Online is a flight war simulation game. World War II Online is a combined arms, online simulation set in a relentless, action-packed 3D environment where players can command and crew a variety of accurately modeled vehicles, naval vessels and aircraft or sling weapons and fight as a foot soldier with and against thousands of other players.
You may want to check out more Mac applications, such as First World War - History And Mystery, Toy Defense. World War I – strategy or Toy Defense. World War I Free, which might be related to World War II Online.