American Civil War is a set of rules for 25mm figures in a 1:25 scale.
American Civil War
Hardtack Civil War Rules
Hardtack is a set of regimental Civil War rules based on the excellent Stargrunt II rules. With a scale of 1 fire = 3-5 men, it’s intended for fighting one regiment v another, filling the space between Johnny Reb and Brother v Brother.
Civil War Ironclads Gaming Page
The Jackson Gamers have a page with everything you need to know to start gaming Civil War Ironclads
Grand Army
In 1975, Don Lowry released a set of rules called Grand Army. Designed for 9mm !? and 15mm figures, it allows players to recreate large scale battles for Napoleonics and the American Civil War. Grand Army now is available online.
Fine Tuning Fire and Fury
Here are a set of house rules for “fine tuning” Fire and Fury, the great American Civil War rules set.
I’m not sure I’m on board with all of these.