1450 – 1550 is a set of free wargames rules for playing miniature games set in the renaissance. The author says it’s “slightly more complicated than Tactica.”
Renaissance
Into Glory Ride Wargaming Rules
Into Glory Ride is a set of free wargames rules for battles set in the Renaissance and beyond. It covers the era 1500 – 1900.
Arquebusier Renaissance Skirmish Rules
Arquebusier is a set of free wargames rules for skirmish games set in the Renaissance.
Medieval and Renaissance Flags For Download
The Krigsspil site has a huge number of medieval and renaissance flags available for downloading.