Chain Reaction 2020 combines CR 2018 and 2015 into one book!

What: A free introduction to the game mechanics used by Two Hour Wargames.

Scale: Man-to-man modern firefights where 1 figure or counter equals 1 man.

Playability: Designed with the solo gamer in mind, all THW games can also be played with all players on the same side or head to head. While our counterpart Sword Play is all about combat with sword, spell and shield, Chain Reaction is about combat with modern firearms.

Chain Reaction gives you a chance to try out THW game mechanics for free, before trying one of our period specific games. Why waste time learning many different games with many different game mechanics?

LEARN ONE SET OF MECHANICS, PLAY MANY PERIODS!