PREORDER***Cuius Regio: The Thirty Years War

VORBESTELLUNG / PREORDER...is expected Summer 2026

From GMT Games:

"War is our homeland, our hauberk is our house."  

—Attributed as a Soldiers' saying from the Thirty Years War

In May 1618, two imperial regents of the Habsburg Empire, along with their secretary, were thrown from the window of the council room in Prague Castle for violating an agreement that protected Protestant religious rights. The act, known as the Defenestration of Prague, marked the beginning of 30 bloody years of warfare— the Thirty Years War.

Cuius Regio explores the operational military aspects of this pivotal period in European history and focuses on the maneuvers and battles that shook Europe for three decades.  

The Thirty Years War unfolded in four main phases: the Bohemian Revolt from 1618 to 1625, the Danish intervention from 1625 to 1630, the Swedish intervention from 1630 to 1635, and the French intervention from 1635 to 1648. It concluded with the Peace of Westphalia in 1648, which finally established a new status quo in Europe, the concept of the sovereignty of states, and shifted the focus of continental politics from southern Europe to the northern states.

The game’s scenarios reflect the military activity of the European powers who fought in the Holy Roman Empire during this time in pursuit of a range of diplomatic, religious, and political goals. The many military operations had a devastating impact on the economic and social well-being of the people across the continent. In large part this was because the Thirty Years War, particularly in the Holy Roman Empire, was mainly a war of maneuver. Armies moved to gain, or regain, control of territory, influence negotiations, or convert the people. The large numbers of mercenaries and the rudimentary supply systems only enhanced the widespread devastation.

During this period, Europe saw the rise of national armies, artillery became an indispensable part of the battlefield, and pikemen began to disappear. Still, the armies stayed technologically matched as weaponry on both sides advanced at a similar pace. In the end, tactical innovations and leadership made the difference on the battlefield. 

Gameplay  

In Cuius Regio, Designer Francisco Gradaille has created a game in which the players are free to apply their creativity to the large range of maneuvers and operations possible to the armies of the period.  

Cuius Regio is played on an operational-strategic scale. Each turn covers one year, and each hex is approximately nine miles across. Infantry and Cavalry strength points represent approximately 500-1000 men each. Artillery is represented by Artillery Trains counters that can travel with armies to give advantage in battle and in taking cities. Each leader has a Leadership Rating that affects how many troops he can effectively lead and his ability to accomplish special tasks.  

The game includes scenarios covering the Bohemian Revolt, the War in the Palatinate, the Danish Intervention, the Swedish Intervention, and the French Intervention. There is also a 31-turn campaign which covers the whole Thirty Years War from 1618 to 1648. Each scenario has a unique character, and the game can be played in as little as an hour and a half (for a short scenario) or can be a multi-session game for the full campaign.  

During turns players recruit armies, conduct operations, sustain their armies, and manage the impact of diplomacy on their campaigns, all in an effort to gain control the Holy Roman Empire.  

Each turn has a variable duration that depends on the number of armies on the map and how those armies are employed. Armies can conduct operations several times in a turn but the more they do, the less effective they become.

Players: 2

Age: 14+ 

Game Scale: A turn is one year, each Strength point represents approximately 500-1000 men, and a hex on the map is about sixteen miles across

Playing Time: Scenarios play in 1-6 hours and the full campaign in 30-40 Hours.

COMPONENTS

One 34” x 33” Map

Four Countersheets

Two Player Screens

Four Player Aid Cards

Two Force Mats

One Rulebook

One Scenario Book

Two Dice

PUBLISHED 2026

DESIGNER Francisco Gradaille

DEVELOPER Mike Sigler

MAP ART Nicholas Roblin

COUNTER ART Alessandro Poluzzi and Tomasz Niedzinski