This is the Summer Lighting Living Rules manual.

Summer Lightning uses a proven game system that features an interactive sequence of play and near-diceless combat that both shows the historical German superiority in command and control and is flexible enough to allow players to explore many variations and options so that the game can be as equal (or unequal) a contest as they want. Options include: variable Polish deployments; greater or lesser surprise and speed of mobilization, hanged attitudes of the Soviet Union or neighboring counties; French intervention; Plan (The Romanian Bridgehead Strategy); and even the possibility that the Blitzkrieg, so appealing in theory, fizzles out on the battlefield. Also, because so many war games are designed for two but played by one, an optional solitaire play method is included.