In 1964, historian Lt. Col. Joseph B. Mitchell published a compact book, Twenty Decisive Battles of the World, an expansion of Sir Edward Creasy's most famous work from a hundred years past, updating it into the 20th Century.

Turning Point Simulations (TPS), a division of LPS Inc, examines these 20 battles with a new series of boxed wargames. These games emphasize accessibility and playability, and come with hard-mounted maps and mounted, die-cut counters. Each battle is presented in a design of low complexity, but high challenge, from some of the industry's top designers

Some of the games come from the "hall of fame" of game designers—Berg, Markham, Prados. Others come from those who have proven themselves with a few quality designs over the past 15-20 years, like Mark McLaughlin and Ed Wimble, while still other designs come from strong up-and-comers, like Hjalmar Gerber or Lembit Tohver.

These games will all be distinct designs—there is no single "Decisive Battles" ruleset that gets modified 20 different ways. But they will all share some common goals... interest...playability...quality components. While the series will be aimed to "look" like a series (and look sharp on a bookshelf), these games are all meant to be played.