Pretty obscure musket and pike rules designed to recreate the battles in the novel Lord Kalvan of Otherwhen by H. Beam Piper. The rule book is pretty slender and even so, contains additional material on uniforms and the like.

For those unfamiliar with the novel, a Pennsylvania state trooper is accidentally transported to a parallel universe where he finds himself leading a pike and shot army in a world where supplies of gunpowder are controlled by a religious order.

The author H. Beam Piper was likely involved in wargaming himself. The battles in the novel are carefully drawn, one based on the Battle of Barnet from the War of the Roses.

The rules use a 1:20 ratio, the sequence of play is fairly standard move-fire-melee with written orders to allow simultaneous movement. Figures are based 3 per base for infantry, 3 to 4 for cavalry. Artillerymen are mounted individually. Troop types are varied especially cavalry. The ratio of musketeers to pikemen is 1 to 2.

The rulebook is slender but the rules are reasonably detailed. Point values for troops are provided as well as some notes on organization. Morale is included and has a WRG feel to it. The rules first published in 1977 make no reference to figure scale so was likely written for 25mm. Two insert pages are included that encapsulate rules and charts. The rules were written by Mike Gilbert, appear to be a labor of love, and were published by Fantasy Games Unlimited, Inc. for whom Mike Gilbert worked as illustrator.