Edwardian Splendor is a set of free wargames rules for playing games with 54mm figures.
Rules: 20th Century
Sending MacDuff To The Front Rules
Ross MacFarlane offers a set of set of free wargames rules for the late 19th/ early 20th centuries called Sending MacDuff to the Front.
Quick Play Low Intensity Warfare Campaign Rules
Quick Play Low Intensity is a set of free wargames rules for playing campaigns set in Vietnam or similar conflicts.
Air War Vietnam Rules
Air War Vietnam is a set of free wargames rules for simple air to air combat in Vietnam. The authors says Air War-Vietnam is highly suitable for group play and can be learned quickly, with only a few pages of rules. The rules include all markers and templates needed to play the game.
Air War Korea Rules
Air War Korea is a set of free wargames rules for introductory level air to air combat in Korea. The author says Air War-Korea is highly suitable for group play and can be learned quickly, with only a few pages of rules. The rules include all markers and templates needed to play the game.