
Fight through the 1st and 2nd Crusades and the conflicts between them in Crusades: Book I, a tactical medieval wargame of sieges, field battles, and frontier warfare. Command Crusader armies or Islamic alliances across 74 scenarios and two branching campaigns.
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About
Crusades: Book I
March east into one of history’s most consequential medieval conflicts in Crusades: Book I, a detailed tactical wargame covering the battles and campaigns of the First and Second Crusades and the battles fought between them.
Beginning with Pope Urban II’s call to arms in 1095, Crusades: Book I follows the rise of the crusading movement from its explosive beginning through the capture of Jerusalem, the creation of the Latin states, and the growing pressure of increasingly organized resistance that culminated in the failed siege of Damascus in 1148.
Take command in Crusades: Book I, where 40-meter hexes and 10-minute turns place you in control of medieval armies fighting for cities, fortresses, roads, and passes. Every battle is shaped by the realities of the age: detailed siege warfare, difficult terrain, fragile supply, and the constant struggle to hold a frontier with limited manpower. Bring medieval sieges to life with Mangonels, Onagers, Ballistae, Trebuchets, Siege Towers, Battering Rams, and ladders.
Recreate the major campaigns of the 1st and 2nd Crusades and the battles between from either side of the conflict.
Lead the forces of the Crusader states and western armies, including:
Knights
Men-at-arms
Spearmen
Crossbowmen
Archers
Pilgrims and levy forces
Or take command of the Islamic alliances and regional powers, including:
Turkish cavalry
Infantry armed with spears and swords
Archers
Garrison troops
Regional field armies
The historically accurate Order of Battle includes the major forces that fought across the era, allowing you to experience the strengths and weaknesses of both sides — from heavily armed western knights and determined infantry to fast-moving eastern cavalry and defenders fighting for cities and fortresses.
The Crusades were not decided by open battle alone. Crusades: Book I captures the full nature of medieval warfare in the Levant and Anatolia, where strongholds, roads, and relief operations often mattered more than simple battlefield victory. Conduct detailed siege operations using Mangonels, Onagers, Ballistae, Trebuchets, Siege Towers, Battering Rams, and ladders to break fortified positions or defend them against assault.
Fight across a harsh and contested landscape where:
Cities and fortresses dominate operations
Roads, passes, bridges, and ridgelines shape every maneuver
Supplies and frontage can decide the fate of an advance
A delayed relief force can doom a city, while ample supply can save defenders
From the sieges of Nicaea, Antioch, Jerusalem, Tyre, Edessa, and Damascus to smaller clashes, marches, ambushes, and defensive stands, Crusades: Book I recreates the military realities of an era where every victory had to be held against inevitable counterattack.
Crusades: Book I includes 74 scenarios covering a wide range of actions and engagements, including:
A solo tutorial scenario
Five training scenarios
Historical battles
Variant scenarios
What-if scenarios
Specialized versions for both head-to-head play and play against the AI
The game covers major and lesser-known actions from across the 1st and 2nd Crusades and between, including battles such as:
Nicaea
Dorylaeum
Antioch
Ma'arat al-Numan
Jerusalem
Ascalon
Heraclea
Ramla
Acre
Harran
Tripoli
Tyre
Aleppo
Edessa
Ephesus
Damascus
Two dedicated campaigns containing 23 scenarios allow you to follow the major events of the era through a connected series of battles and strategic decisions.
Play through the First Crusade or the Second Crusade, from either the Crusader perspective or the Islamic alliance perspective. These branching campaigns allow player choices to shape the path forward, with strategic decisions influencing which scenarios follow and how the campaign unfolds.
A range of historically accurate maps are included covering the major locations fought over during the 1st and 2nd Crusades, as well as lesser-known battlefields.
The game also includes extensive 3D unit graphics representing the major armies of the era, bringing the crusading world to life on the battlefield.
Customize and expand your experience with a full suite of editors, including:
Campaign editor
Scenario editor
Sub-map editor
Use these tools to modify existing content or create new medieval engagements of your own.
Multiple play options include:
Play against the computer AI
Play-By-Email (PBEM)
LAN and live Internet play
Two-player Hot Seat mode
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Reviews
Themes across 44 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Complex, but a love letter to the crusades, if you want a non total war war game about these time per this is a fantastic game covering every major engangment you could want.
A terrific game on a subject that doesn't get a lot of coverage -- and it's pretty hard to find games that handle the siege aspect of this era's battles well, so it's great to see something that is designed from the ground up to do that. Also, developer very responsive -- I requested cloud saves a little while ago and they were implemented quickly. Really looking forward to seeing more WDS games get released on Steam.
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Languages: English
Hours played at review time, across 44 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Recommended. (Dont mind my playtime. I play this game since its original release) Crusades: Book I is exactly the kind of serious historical wargame I am glad to see arriving on Steam. It is not a flashy mainstream strategy title, and it does not try to be one. This is a detailed, old-school operational/tactical wargame built around historical scenarios, careful order-of-battle work, and a rules engine that rewards patience, planning, and a real interest in the period. The strongest point is the sense that you are not just playing a generic medieval battle game. The maps, leaders, formations, and scenario situations give the battles a real historical shape. If you enjoy reading about the Crusades, then playing a scenario here can make the history feel much clearer: who was where, why the terrain mattered, how command decisions shaped the battle, and why things did not always unfold as neatly as they do in a book. There is a lot of content here, including many scenarios and campaign play, and the game also supports PBEM, which remains one of the best ways to experience this kind of wargame. The interface is traditional WDS/John Tiller style: functional, dense, and not especially modern. New players should expect to spend some time with the manual, the quickstart guide, and the tutorial scenarios. Once the system clicks, though, there is a very substantial game underneath. The graphics are not the selling point, although the game looks good for this style of traditional digital wargame. The real appeal is the research, the depth, the scenario variety, and the long-term support that Wargame Design Studio is known for. Highly recommended for grognards, history readers, PBEM players, and anyone who wants a serious Crusades-era wargame rather than a lightweight medieval strategy game.
Finally, Wargame Design Studio is on Steam! I’ve been playing their games for some time, and they have some of the best wargames on PC. This game is perfect for people who like hex-and-counter strategy. I’m happy to see them on this platform and I hope they bring more of their games to Steam! 10/10
Easy to learn, hard to master — exactly what a great wargame should be. WDS titles offer deep historical flavor, clean mechanics, and an impressive amount of content. No matter your interest, there’s a plethora of historical epochs to explore: from the Dark Ages and Musket & Pike era, through Napoleonics, the Civil War, World War I & II, and even hypothetical Warsaw Pact vs. NATO conflicts in the ’80s and ’90s. Each epoch includes multiple series covering everything from tactical engagements to full strategic campaigns. The basics are simple to pick up, but mastering a series (or even a single game) can take years — in the best way possible. Play solo against an AI that the dev team continually improves, or face off against other players who love military history as much as you do. The price‑to‑enjoyment ratio is off the charts. If you’re into historical wargaming, WDS delivers endless replayability and authenticity.
I have been playing these games for over 2 decades. WDS are the fairly new owners of the business and have constantly updated and improved older titles whilst also creating excellent new ones such as this, adding to an already extensive catalogue. There is not enough space to list all the good stuff on offer. If you are into this style of wargaming then you are in for a treat.
I've been playing WDS games (and their predecessors Talonsoft and John Tiller Games) for over 20 years and I love their work. Well researched, well designed, fun to play, and a tried and true movement and combat system. The new Sword and Siege series uses many of the traditional UI elements that have worked for WDS' WWII, Napoleonic, and Civil War titles, with some tweaks and new improvements for medieval combat. Really enjoyable game covering a period that most designers have ignored. Try the demo, and explore more of WDS' titles!
Been playing this (& its companion) since their initial release. Great game system that can cope with everything from set piece battles to siege assaults to meeting engagements to ambush/rear-guard actions. The two sides play very differently, learning how to set up a solid infantry line, exploit the horse archers or set up a devastating knightly charge all create a unique feel.
I've been playing the non-Steam version for the past year, and the game is stellar. The research behind it, combined with the sheer amount of content, is incredible. I don’t think you’ll find another game where medieval warfare is so well represented. I especially appreciate the artwork, music, and sound design. WDS continues to improve its games years after release. As a solo player, I’ve been very satisfied with the challenge the AI provides. Highly recommended.
Ignore my play time, I've been playing WDS titles off Steam for years now, with easily thousands of hours into their various titles. I'm so glad that they're finally coming to Steam, hopefully giving them better acknowledgement amongst gamers and wargamers alike. It might seem daunting at first, but once you get the controls down and a general feeling for the game rules, these old graphics come to life in an amazing simulation of battles all throughout the last one thousand years of human history. I've loved these games since playing the old Talonsoft Napoleon and Civil War games as a kid alongside my dad. In a few years time, I hope to do the same with my own children when they're old enough.
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