The D3 Norman Conquest rules are designed as a set of low-complexity rules based on One Hour Wargaming rules and Dux Bellorum. It uses a square gridded tabletop.
Miniatures Rules
Waterloo Napoleonics Rules
Waterloo is a new set of Napoleonics rules, free for the downloading, from Evan Williams. The game is organized around “companies,” and statistics are for single figures.
Lord of the Rings Dragon Rules
Wyrmworld has a well-thought out and complete set of rules for using dragons in Games Workshop’s Lord of the Rings Strategy Battle game.
D3 ECW Rules
A variant of the One-Hour Wargames rules, the D3 ECW rules use a combination of D3 (1,1,2,2,3,3) and D6 dice.
D3 French and Indian War Rules
D3 French and Indian War is a set of free wargames rules designed for play on a 6 inch square grid.