If there is a parallel universe in which World War 2 didn't occur, I'd bet there are far fewer games there. Well, like it or not Hills of Glory 3D is a WWII-themed title that's part strategy and part "castle defense." On the upside, it's pretty enjoyable.
This is a follow up to the original Hills of Glory, but this time with a whole extra dimension. The graphics are clean and cartoon-y – it actually looks surprisingly good for only being a 49MB download.