“When Technology Meets Tradition” is a set of rules for wargaming early modern warfare conflicts, roughly from 1895-1915. The emphasis of the author is on early World War I (1914-1915) but other period wars are also of interest, such as the Russo-Japanese War or the Boer wars. The rules are fast-play and focus on the problems faced by military tacticians during early modern warfare: when outdated linear tactics and love of the offensive ran head-on into lethal, accurate, and rapid firing weaponry.
The Great War
Spandau and Lewis WWI Dogfighting Game
Spandau and Lewis is a set of free wargames rules for WWI aerial dogfighting.
1916 World War I Rules
Wartime Journal offers 1916, a set of free wargames rules for battalion and regimental combat in World War I.
Flanders Field WWI Rules
Flanders Field is a set of free wargames rules for the first World War. It lets players conduct regimental to divisional level actions.
Jutland: The Rules of the Game
Jutland: The Rules of the Game are a set of free wargames rules for large scale WWI Fleet Actions.