Alternate History Gaming.

[Shad]

I'm cool in general to alternate history, though I enjoy sci-fi which is fundamentally the same thing (invented at the designer's discretion).

Alt-Hist games that are based on actual battle plans which were never executed have the most appeal for me. An excellent example - perhaps the best - of this would be S&T #45: Operation Olympic which is, of course, based on the actual Operation Olympic, for which quite detailed historical documents exist for both sides.