Furious Reason is a set of free wargames rules that combines Fire and Fury with Age of Reason.
Fire and Fury variant
Fire and Furia Francese
Fire and Fury Francese, from Nick Dorrell, is a variant of my all time favorite wargaming rules set, Fire and Fury. Whereas Fire and Fury is designed for the American Civil War, F&F-F is for playing miniatures games set in the European wars of the mid 19th century, such as the Crimean War and the Franco Prussian