Argad is a set of free wargames rules for skirmishes in the dark ages and for pirates in the 17th and 18th centuries.
pike and shot
Victory Without Squares
Victory without Squares is a modification of the Victory without Quarter English Civil War Rules System. Both are free wargames rules, with the “without squares” version using inches, rather than squares for movement and range.
Escaramouche Pike and Shot Era Skirmish Rules
Escaramouche is a set of free wargames rules for skirmishes in the Pike and Shot era. It’s designed to be played with perhaps six figures per side.
No Dachi Samurai Skirmish Rules
No Dachi is a set of free wargames rules for Samurai skirmishes.
Pike and Shotte Skirmish Rules
Richard Bradley of the Tyneside Wargames Club offers a set of free wargames rules for skirmishes in the English Civil War.