Highest Ground Science Fantasy Wargame

Highest Ground is a free science fantasy board game. The author writes:

The Highest Ground is a game that imagines a world with a very long period variable climate. Where an alien species has, approximately every 800 Earth years, collected a band of warriors from the most advanced warrior state on Earth at the time, and transported them to this planet. There they are to achieve dominance over the local population, grow a crop for the aliens, and, in the ensuing climactic holocaust, be almost wiped out and, therefore, not become a threat to the aliens.

At the time depicted by the game the have just bagged a new group of Earthlings and taken them to the planet. This group
is from 1979 and is a bunch of mercenaries on the losing side of an African civil war. They have been grabbed from a
soon to be terminally untenable position. They have been taken to the planet where the society that has grown up
around the survivors of previous recruiting drives consists of several warring states peopled by Medieval feudal kingdoms and knights, Roman Legions, pony riding barbarians and Egyptian pharaohs. The game finds the few mercenaries, having allied themselves with the European kingdoms, at war with the local Roman Empire.

Battleground Hostile Intentions Board Game

Battleground Hostile Intentions is a free board game for two players. The author writes:

It is the near future. A rebel coup has destabilized a small corner of the world, and border nations are moving in to grab whatever territory they can.

You command the forces of one of those nations. You have established a command center in a section of the country, but you face rivals for control of the area. Now you must build up your command center by erecting defenses and constructing facilities that train soldiers, manufacture weapons, tanks, aircraft and other vehicles.

Achieve victory by destroying your opponents’ command centers or capturing and holding critical objectives located throughout the area.

Company Leader Boardgame

Company Leader is a free print-and-play boardgame about modern combat. The authors write:

Company Leader is a free wargame for 2 to 4 players. It is a company level based game, meaning that players are playing with company sized playing pieces. As a commanding officer you try to win the battlefield by scouting and destroying the enemy and by capturing urban areas.

Car Wars Classic Free Rules

Steve Jackson Games has made the rules for the Classic Car Wars game free for the downloading.

I played the heck out of that game back in the day.

Two Flags One Nation Board Game Rules

Two Flags One Nation are a set of rules for do-it-yourself American Civil War board games. The author explains how he generates maps and block pieces with his computer.