From the publisher: Welcome to the world of Two Hour Wargames! Chain Reaction 2015 is an introduction to Two Hour Wargames. It’s a complete game – not a teaser – and is free. Chain Reaction 2015 is a set of man-to-man combat rules that can be played in a variety of periods and with any figures you may already have. Chain Reaction 2015, like all THW games, can be played solo, cooperatively – all players on the same side – or competitively – head to head. Inside you’ll find: The current Reaction System, used in all Two Hour Wargames, that allows you to learn one set of mechanics to play a variety of periods. Quick game mechanics that yield realistic shooting and melee results. Three scenarios that can be played over and over with no two games ever being the same. Character advancement based on your success in each game. An easy to use Campaign system that generates your next game based on how well you’ve done. Ways to generate your characters and your opponents – Police, Gangers, Militia, Guerillas, and Military. All this and more… Chain Reaction 2015 lets you to learn the current version of the Reaction System used by THW without spending a dime. While our counterpart Swordplay is about hand-to-hand combat with sword and shield, Chain Reaction 2015 is about modern firearms. Chain Reaction 2015 gives you a chance to see if you like the Reaction System, before trying one of our period specific games. Think of Chain Reaction 2015 as a preview of our other period specific games like 5150: Star Army, All Things Zombie – Final Fade Out, and NUTS! Chain Reaction is updated every few years in line with the new editions of Two Hour Wargames other rules. Updates so far have been published in 2018 and 2020.