Popular games built on game engine Clausewitz Engine

Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.

The Dark Ages might be drawing to a close, but Europe is still in turmoil. Petty lords vie against beleaguered kings who struggle to assert control over their fragmented realms. The Pope calls for a Crusade to protect the Christians in the Holy Land even as he refuses to relinquish control over the investiture of bishops - and their riches. Now is the time for greatness. Expand your demesne and secure the future of your dynasty. Fill your coffers, appoint vassals, root out traitors and heretics, introduce laws and interact with hundreds of nobles, each with their own agenda. A good lord will always need friends to support him. But beware, as loyal vassals can quickly turn to bitter rivals, and some might not be as reliable as they seem... Stand ready, and increase your prestige until the world whispers your name in awe. Do you have what it takes to become a Crusader King? Crusader Kings II explores one of the defining periods in world history in an experience crafted by the masters of Grand Strategy. Medieval Europe is brought to life in this epic game of knights, schemes, and thrones...

Crusader Kings III is the newest generation in the medieval role-playing grand strategy game series Crusader Kings. Expand and improve your realm, whether a mighty kingdom or modest county. Use marriage, diplomacy and war to increase your power and prestige in a meticulously detailed map that stretches from Spain to India, Scandinavia to Central Africa.

Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history. From the heart of the battlefield to the command center, you will guide your nation to glory and wage war, negotiate or invade. You hold the power to tip the very balance of WWII. It is time to show your ability as the greatest military leader in the world. Will you relive or change history? Will you change the fate of the world?

Experience one of the most defining periods in world history in an experience crafted by the masters of Grand Strategy. The greatest cultural and military civilizations are brought to life through this epic title rife with great strategic and tactical depth. Set during the golden age of the Roman Republic when the Senate ruled the Empire, Vae Victis features a massive number of additions and improvements to Europa Universalis: Rome, a game that was already one of the most prominent to depict that era in the widest scope. An overview of these key changes begins with government, which has received a lot of attention for the expansion in order to produce more fluid and balanced gameplay. The cast of historical characters of the ancient world have also had a significant overhaul across a variety of areas and with the addition of missions, decisions and laws.

Europa Universalis III delves deeply into the areas of exploration, trade, warfare and diplomacy. This epic strategy game lets players take control of a nation and guide it through the ages to become a great global empire. Unparalleled in its depth and historical accuracy, Europa Universalis III gives the player unprecedented freedom in how they choose to rule their nation from an impressive choice of over 250 historically accurate countries.

Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.

At the demand of the devout fanbase, this is the 4th expansion of the classic historical strategy game Europa Universalis III. Enhancing every aspect of the game to create an even deeper and more rewarding experience.

Use your power as a Feudal Lord to unite the land of the Rising Sun under your iron fist.

The strategy wargame March of the Eagles is dedicated to the era 1805-1820 focused on the dramatic conflicts of Europe. March of the Eagles explores one of the defining periods in European history in an experience crafted by Paradox Development Studio, the masters of Grand Strategy and makers of Hearts of Iron and Europa Universalis. The Napoleonic War is brought to life in this war-focused strategy game.

Shadows of the Shroud is an expansion for Stellaris, released as a part of the Season 09 Expansion Pass in 2025. The psionic plane holds untold power—but at what cost? Shadows of the Shroud is a complete overhaul of the Psionic Ascension path, introducing new moral dilemmas, patron allegiances, and the ever-present temptation of ultimate destruction.

Red Flood is a mod for Hearts of Iron IV set in an alternate timeline where the Great War ended in stalemate. The year is now 1936 and Europe once more is on the brink of war.

The Republic is the third expansion for the critically praised strategy / RPG Crusader Kings II. In The Republic you play as a Patrician in one of the great medieval Merchant Republics. Expand your trade empire as you compete with the other four Patrician families for the coveted position of Doge and the leadership of the Republic.

Welcome to Pax Britannica: An Imperial Timeline, an alternate history science fiction mod for Hearts of Iron 4.

Crusader Kings II: Horse Lords is the ninth expansion for Crusader Kings II, bringing players expanded gameplay based around the dynamic and vibrant nomadic cultures of the Eurasian steppes. In Horse Lords, you will be able to take anything from a smaller nomadic tribe to a great horde and start building your empire from horseback. This expansion introduces a number of new systems and game mechanics, for example a completely new government form and the possibility of having tributary states. You can also expand and control trade on the ancient Silk Road in order to finance your conquests - but beware - others will also try to gain control of these lucrative routes, and enemy raiders may try to destroy your trade posts if you don’t guard them well.

Conclave will give your vassals some bite to go along with your bark, as the council that governs your realm will now demand some say in how you rule. Powerful dukes, regardless of competence, will require a seat at the table, and those left on the outside will be more likely to plot against you.

In Monks and Mystics, your characters can follow new paths in their search for religious enlightenment and holy blessing, joining sacred societies or secret brotherhoods that open new opportunities for role-playing and story-telling in one of the most popular historical strategy games ever made.

The second expansion adds variety to the game for the Byzantine Empire. Faction appeared, the possibilities dazzle or neutered prisoners to recreate the Roman Empire or to overcome the great schism. Now Byzantine emperors themselves may appoint a successor, giving the honorary title of "despot" prefer the heir.

Crusader Kings II: Sons of Abraham is the fifth expansion for the critically praised strategy/RPG. Gameplay focuses on the Abrahamic religions; Christianity, Islam and Judaism. The expansion for the critically praised strategy/RPG Crusader Kings II explores one of the defining periods in world history in an experience crafted by Paradox Development Studio, the masters of Grand Strategy. Medieval Europe is brought to life in this epic game of knights, schemes, and thrones.

Addition or additional script adds a fictional invasion of bloodthirsty Aztecs in Europe. This is the first Paradox Development Studios, where they have departed from the true story.

Chronicles of Omniluxia is a total conversion mod set in the original fantasy world of Omniluxia. Every aspect of the game has been entirely overhauled to fit the new early medieval fantasy setting. Omniluxia was originally released in 2019 and over the last year we have picked it back up and spent countless hours getting the mod into great shape for release with tons of new content, flavor, bug fixes, and map improvments.

Includes a new core system and technologies. New planes to explore. New branching narratives.

Godspeed: A Flame for Winter is a Hearts of Iron IV total overhaul mod focused around a wildly divergent alternate history and an emphasis on storytelling. In Godspeed, you fight not over revanchism, ideologies, or which version of Germany won which version of World War I, but over you and your faction's grand plan for the world after the war is over.

Face up to the toil, struggle, pain, strife and hardships of leadership in the latest expansion for Crusader Kings II. Crusader Kings II: Way of Life allows you to live life the way you like, be it as a peaceful mystic, a family man or a master of war. Each chosen focus will tell a different tale and presents an opportunity to forge your path to success by setting your focus and shaping the destiny of your empire.