Many wargames can be quite complicated, with lots of rules, tables, and charts. This is a category for computer programs that automate much of that, programs that are not independent video games in themselves, but do help play board game wargames.
Aide de Camp 2 (ADC2) is a computer program by HPS Simulations designed for playing board wargames by email. It has utilities that allow users to create an electronic version of the map, rules, and counters of existing games, built in dice-rolling routines and an turn replay feature. It is not a stand alone computer wargame, but does allows players to design their own games using it.