Warhammer 40K Battle Manual

Games Workshop offers an “essential” edition of its Warhammer 40K rules free for the downloading.

Battles of the Winter War Site

The 1939 – 1940 Soviet invasion of Finland was one the least well known, but also among the most interesting of WWII campaigns. Here’s a site on the Winter War. It was also, by the way, the subject of a fantastic Finnish movie: THE WINTER WAR (Talvisota)

Gross Jagersdorf Board Game

Gross Jagersdorf is a free board game of the August 30, 1757 battle between the Russians and Prussians in the Seven Years War.

All Quiet On The Martian Front Rules

All Quiet On The Martian Front is a great game set in an alternate history where HG Wells’ Martians return in 1908. It’s got a WWI vibe, with steam tanks and big cannons and motorcycles. You can take a look at the free rules here.

Battle Leader Tactics Card Game

Battle Leader Tactics is a free card game with a unique premise. From the introduction:

BLT is a component and introductory game for the Battles Leaders Tactics & Technology (BLTT) master game. BLTT is an abstract wargame that depicts some of the greatest military leaders (e.g., Alexander, Napoleon, Caesar, etc.) commanding historical units in some of the world most decisive battles (e.g., Megiddo, Zama, Hastings, Waterloo, etc.) using proven tactics of history. BLT serves as a basic game introducing players to the interaction between army units, leaders and tactics. BLT allows players to command standard troops (e.g, infantry, cavalry, artillery and guard) and special military units (e.g., 300 Spartans, Panzer Army Afrika, etc.) with historic military leaders using real tactics and fog of war–all without any dice. The primary resolution engine for the game is housed in the Tactics Results Chart (TRC), which compares tactics selected by the players and determines losses, if any, of army units.