Empress Miniatures offers a set of free wargames rules called Damned Wobbly Gentlemen, designed for recreating battles of the Zulu War.
Rules: Colonial
Death In The Desert
Death In The Desert is a set of free wargames rules for games involving the French Foreign Legion and bedouin Arabs.
Orc’s Drift Fantasy Rules
Orc’s Drift is a set of free wargames rules for 25mm Colonial fantasy battles in the Center of the Earth.
Warhammer Colonials From Jervis Johnson
Warhammer Colonials is a set of amendments to Warhammer 40K for 19th Century colonial warfare. from Jervis Johnson himself.
Colonial DBM
Colonial DBM is set of free wargames rules that uses a modification of DBM to simulate 19th Century colonial Warfare