Sword & Siege Crusades: Book I

Sword & Siege Crusades: Book I

Wargame Design Studio · April 20, 2026 · Strategy, Turn-Based Strategy, Military, Medieval, Historical

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About Sword & Siege Crusades: Book I

Crusades: Book IMarch 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.

Command the Armies of the Crusading Era

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.

Siege Warfare and Frontier Conflict

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 operationsRoads, passes, bridges, and ridgelines shape every maneuverSupplies and frontage can decide the fate of an advanceA delayed relief force can doom a city, while ample supply can save defendersFrom 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.

74 Detailed Scenarios

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 Branching Campaigns

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.

Extensive Maps and Medieval Visual Detail

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.

Powerful Editing Tools

Customize and expand your experience with a full suite of editors, including:Campaign editorScenario editorSub-map editorUse these tools to modify existing content or create new medieval engagements of your own.

Multiple Ways to Play

Multiple play options include:Play against the computer AIPlay-By-Email (PBEM)LAN and live Internet playTwo-player Hot Seat mode

Sword & Siege Crusades: Book I — game info

Platforms
Windows
Player modes
Single-player, Online PvP, LAN, Split screen
PC Game Pass
Not included
More games like this:Split-screen games

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Aug 9, 2026
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.
5 found this helpful
Recommended Sep 10, 2026
pure cinema, and absolute pinnacle of wargaming.. this is my 2nd wds game, my first was american revolution, and i have to say the artwork, sprites, ease of play mixed with in depth complexity is simply some of the best wargaming ive played, and im VERY picky on what wargames i call good. i have had nothing but a great time playing this devs games. simply perfect when it comes to hex wargaming.. i cant stress it enough!
3 found this helpful
Recommended Jun 26, 2026
Only played a short time but loving all the time that went to making this game historically accurate. No problem getting used to the controls & a nice tutorial included in a pdf file. Recommended!!!
3 found this helpful
Recommended Jun 19, 2026
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.
3 found this helpful
Recommended Sep 10, 2026
Just finished the Siege of Nicaea. Great game. The mechanics they built around mele work real well. Love the historical research War Game Design Studios does.
2 found this helpful
Recommended Sep 5, 2026
GDS rocks!
1 found this helpful

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