Cult of the Wind is a game on Steam Greenlight that imagines people competing in multiplayer WW2-style dogfights. The thing is they do it without airplanes. According its webpage, there are pretend machine guns, pretend explosions, and pretend sputtering noises of airplane propellers made with characters’ mouths. I personally was tickled that a bullet point is “weird noises.”
As far as how Cult of the Wind plays, it looks like an arena shooter. OK, a totally bat-shit arena shooter. But when you look at how these pilots running with arms extended to the side can transform into the shaded outline of a fighter plane and zip across the sky, you realize how a little imagination goes so very far in death-match. It should prove really fun if you can stomach the basket-case overtones.