Yanks Up The Yangtzee

Yanks Up The Yangtzee is a set of free wargames rules for skirmishes along the Yangtzee river in the 1920s and 1930s.

Send Not To Know

Send Not To Know is a set of free wargames rules for 15mm miniatures games set in the Spanish Civil War.

Mega Blitz Rules

Mega Blitz is a set of free wargames rules for operational level games set in the 20th Century.

The Chaco War 1932 – 1935 Wargames Rules

The Chaco War is a set of free wargames rules based on Phil Barker’s DBA. It’s designed to let players fight out the 1932 – 1935 Chaco War, which was fought over control of great part of the Gran Chaco region of South America, which was incorrectly thought to be rich in oil.

wikipedia link

Land And Airborne Assault Rules

Land and Airborne Assault are a set of free wargames rules that cover warfare from 1950 to the present. From the website:

Land and Airborne Assault is published in PDF format, is printer friendly and suiteable for all micro armour scales.
Land and Airborne Assault rules cover warfare from 1950 to the present day.
They include Electronics, Engineering, Artillery and Aircraft support plus Special Forces
and RPVs. The 4th edition has improved CAP air to air combat rules.

Pre-Game rules allow you to carry out a reconnaissance, flanking attack, sabotage and assassinations.
The morale reactions reflect actions troops and units would take on the modern battlefield.
Some dice rolling normally associated with modern warfare rules have been simplified making it possible to played a large game in a afternoon or evening.

Data specific to these rules for AFV armour class’s, size and speed, ATGM speed, generation and size, Aircraft size and payload and Artillery ranges is supplied on this website in the data and information section.