Days of Iron is a set of free wargames rules for games set during the Franco Prussian War. The rules are designed for 15mm figures, with no particular basing system, as long as they are all based alike.
The Miniature Wargaming Editor
Days Of Empire Crimean War Games
Days of Empire is a set of free wargames rules for games set in the Crimean War.
Imperius Maximus
Imperius Maximus is a DBA variant for colonial wargames.
Maximilian Rules!
Maximilian Rules! is a set of free wargames rules set during the ill-fated Maximilian Adventure in Mexico in 1861 – 1867.
Man On Man Ancients Rules
Man On Man is a set of free wargames rules for the ancients period. Interestingly, it’s a diceless system.