Welcome to Shadow Throne. You hold in your hands an account of a Genestealer Cult infestation discovered upon Holy Terra itself, and of the vicious battles of the ensuing Imperial purge. Read on to discover more about this shocking secret war within the very heart of the Imperium, and the inhuman warriors who fought in it.
The Genestealer Cults are one of the most insidious threats faced by the Imperium of Man. From a single undetected vanguard organism grows an underground infestation that can destabilise worlds and call down the horrors of a Tyranid swarm. Through bio-corruption and mind control the cults use the Imperiums own people against it. By their unholy touch have countless precious worlds fallen to the ravening swarms. It is no surprise, then, that those Imperial servants who know of the Genestealer Cults also know not to underestimate the threat they pose to the Emperor’s Realm. Yet even in their darkest imaginings, none could have envisioned this menace rearing its head upon Holy Terra herself. Not until now.
With the contents of the Shadow Throne boxed set, you get to take control of either the Genestealer Cults or of the mighty Talons of the Emperor, sent to root out the unthinkable infestation they represent. Both factions comprise elite warriors. The Genestealer Cults miniatures within this set comprise the Patriarch itself and its chief lieutenants, not to mention the destructive genius of the Reductus Saboteur and a band of fanatical Neophyte Hybrids. The Talons of the Emperor, meanwhile, consist of ultra-elite Allarus Custodians led by a sublimely skilled Blade Champion and supported by a squad of Sisters of Silence Witchseekers. Despite the comparative numbers, the Imperial force might look to possess the upper hand in martial might. However, the narrative-driven missions you will find within this book provide you and an opponent with exciting gaming opportunities wherein the Genestealer Cults have the deadly advantages of ambushing their foes, and of hurling fresh waves of zealous warriors into the fight over the bolt-riddled corpses of those who came before.
Alongside these nail-biting narrative missions, you will also find expanded background within this publication. Both of the warring factions are detailed here, as well as the history and build-up to the conflict that they fought. Meanwhile, each mission is accompanied by further narrative to bring your games to life on the tabletop. There is also additional rules content here, with each of the units in the box having its own dedicated datasheet supported by additional matched and narrative play content - there’s even an exclusive set of Crusade rules that allow you to reward your battling heroes with fresh skills and equipment to make them even more deadly. Coupled with a showcase of beautifully painted Citadel miniatures to inspire your own building and painting efforts, this set contains everything you need for countless hours of fun and excitement. Read on to find out more...
Book | Kind | Edition | Version | Last update |
Shadow Throne |
Shadow Throne | Boxset | 9 | | December 2021 |
Welcome to the rules section of
Warhammer 40,000: Shadow Throne. On this page you will find all the content you need to recreate the attempted purge of a Genestealer Cult infestation from Holy Terra on your tabletop battlefields. You can dive straight into re-enactments of the key missions of this conflict using the Talons of the Emperor and Genestealer Cults miniatures provided. You can use the rules to represent the survivors of this conflict in
narrative play. Alternatively, you can use the rules to inspire deadly uprisings of your own creation. Whichever appeals to you - even if it’s a bit of all three - the following page provides a modular toolbox that allows you to get the most out of
Warhammer 40,000: Shadow Throne.
THEATRE OF WAR: DEADLY AMBUSHTheatres of War offer a unique and exciting way to represent a wide array of different battlefield environments on the tabletop, some more extreme than others, and can be incorporated into any games of Warhammer 40,000 that you might play.
The Shadow Throne Theatre of War is a unique rule set that allows one player to spring a deadly ambush on their opponent. The missions presented below will specify how to use this Theatre of War, but it is also a suitable addition to games in which one player’s army is at a greater strength than their opponents, or games in which you are looking for one player to ambush another.
MISSION 1: AMIDST THE RUBBLEAmidst The Rubble is the first of the narrative missions included in this booklet. It allows both players to use the miniatures found in
Warhammer 40,000: Shadow Throne to recreate the aftermath of the Genestealer Cults first major ambush, as the forces of the Talons of the Emperor pull themselves clear of the rubble and continue their assault. If this mission is played as part of a Crusade battle, then the Mission Bonus is in use.
MISSION 2: CORNERED PREYCornered Prey is the final battle of the Shadow Throne story. The last remaining forces of the Talons of the Emperor engage the very heart of the cult to end its insurrection. Yet a presence lurks above, waiting for the opportune moment to strike. If this mission is played as part of a Crusade battle, then the Mission Bonus is in use.
The Genestealer Cults were at their most dangerous when fighting to protect their lair, for within lay the Cult’s Patriarch. As the forces of the Imperium pressed on, they were ambushed at every corner and paid a high price for their advance. These rules represent the myriad of ambushing tactics displayed by the Genestealer Cults in this environment.
Deadly Ambush is a new Theatre of War for your games of Warhammer 40,000. The missions presented below will detail which of these rules are used, but if you and your opponent agree, this Theatre of War can be used in other games of Warhammer 40,000 - even in conjunction with other additional rules and mission packs - in the following manner:
After mustering their armies, each player adds up the
Power Rating of all the units in their army If the players are playing a
matched play game, or are otherwise using
points values, each player adds up the points values of all the units in their army instead. The table below is then consulted to establish if a player can use Deadly Ambush Ruses, and how many they can use.
Designer’s Note: While it specifies above when Deadly Ambush Ruses should be used, players should feel free to introduce them into their games even if their forces are more equally matched. For example, players might decide it is narratively appropriate for one player to have some Ruses, therefore they gain one or two to use during the game. Similarly, players may decide they want to pitch both forces against one another on an equal footing in a battle of covert tactics and scheming, therefore they both randomly generate (in secret) an equal number of Deadly Ambush Ruses.HIGHEST POWER VALUE/POINTS VALUE BANDING OF OPPONENT’S ARMY | MAXIMUM POWER VALUE/POINTS VALUE OF YOUR ARMY IN ORDER TO USE DEADLY AMBUSH RUSES | NUMBER OF RUSES AVAILABLE | 25/500 | 20/400 | 1 | 50/1000 | 40/800 | 2 | 100/2000 | 85/1700 | 3 | 150/3000+ | 130/2500 | 4 |
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If a player is using Deadly Ambush Ruses, after determining deployment zones they must secretly select the Ruses they have available from the lists below. Alternatively, they can declare they will randomly select their Ruses, then secretly roll one D3 to determine the table, and roll a further D3 to determine a Ruse from that table. Either way, they should make a note of which Ruses they have selected. Each Ruse can only be selected once (if randomly determined, re-roll until a new Ruse has been determined).
Each Ruse specifies when it can be used, and can only be used once.
RUSE TABLE 1
D3 | RUSE |
1 | Loyal Throng Use this Ruse when a unit from your army with the Troops Battlefield Role is set up. Until the end of the battle:
- Each time that unit would be destroyed, it is placed into Strategic Reserves at its Starting Strength.
- In each of your Command phases, if that unit is below its Starting Strength, roll a number of D6 equal to the difference between its Starting Strength and the number of models currently in that unit. For each result of a 2+, one of its destroyed models is returned to the unit.
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2 | Defiant Defenders Use this Ruse at the start of your opponent’s Shooting phase. Each time a ranged attack is made against a unit from your army, if it is wholly within your deployment zone or Remained Stationary in your previous Movement phase, it is treated as having the benefits of Light Cover against that attack. |
3 | Silent Stalkers Use this Ruse at the start of your opponent’s Shooting phase. Each time a ranged attack is made against an INFANTRY unit from your army, if it is not within 12" of any enemy units, it is treated as having the benefits of Dense Cover against that attack. |
RUSE TABLE 2
D3 | RUSE |
1 | Practised Firing Lanes Use this Ruse in your Shooting phase, when a unit from your army is selected to shoot. Select one Obstacle or Area terrain feature. Until the end of the phase, enemy units cannot claim the benefits of cover from that terrain feature. |
2 | Counter-attack Use this Ruse at the start of your Charge phase. Until the end of the phase, each time you make a charge roll for a unit in your army, you can select one of the following:
- Re-roll that charge roll.
- Add 1 to that charge roll.
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3 | Ready and Waiting Use this Ruse at the start of your opponent’s Charge phase. Until the end of the phase, each time a unit from your army is selected as a target of a charge, it can do one of the following:
- Hold Steady and fire Overwatch. If a unit Holds Steady, any Overwatch attacks made by that unit this phase will score hits on rolls of 5+.
- Set to Defend. If a unit Sets to Defend, it cannot fire Over watch this phase, but until the end of the next Fight phase, each time a model in that unit makes a melee attack, add 1 to the hit roll.
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RUSE TABLE 3
D3 | RUSE |
1 | Patient Hunter Use this Ruse before the battle, when declaring reserves and transports. Select one INFANTRY unit from your army. That unit can be set up hidden instead of being set up on the battlefield. If it is, then in the Reinforcements step of one of your Movement phases you can set up this unit anywhere on the battlefield that is more than 9" away from any enemy models. |
2 | Lurking Hunter Use this Ruse before the battle. During deployment, when setting up one INFANTRY unit from your army, it can be set up anywhere on the battlefield that is more than 9" away from the enemy deployment zone and any enemy models. |
3 | Stalking Hunter Use this Ruse when you set up a unit from your army on the battlefield (excluding as a result of disembarking from a TRANSPORT). You can make a Normal Move with it up to D6". |
The explosive collapse of the chamber roof had buried many of Carvellan’s followers, trapping or wounding some and killing others. Before they could recover, a fresh wave of Genestealer Cultists attacked.
THE ARMIESThe Talons of the Emperor army consists of: 1
Blade Champion; 1
Allarus Custodians unit containing 3 models; 1
Prosecutor,
Vigilator or
Witchseeker unit containing 5 models.
The Genestealer Cults army consists of: 1
Reductus Saboteur; 1
Primus; 1
Magus; 1
Neophyte Hybrids unit containing 10 models.
THE BATTLEFIELDUse the map below to create a battlefield that is 44" x 30".
DEPLOYMENTThe Talons of the Emperor player sets up their army first. Each unit in the Talons of the Emperor army must be set up buried (see below).
Then the Genestealer Cults player sets up their army. Each unit in the Genestealer Cult players army must be
set up in ambush.
FIRST TURNThe Talons of the Emperor player has the first turn.
BATTLE LENGTHThe battle ends when all of the units in the Talons of the Emperor army have been destroyed or escaped.
BURIEDDuring deployment, each unit in the Talons of the Emperor army must be set up buried instead of on the battlefield. In the
Reinforcements step of each of their
Movement phases, the Talons of the Emperor player sets up one of their units that is buried anywhere that is
wholly within their deployment zone.
If it is set up within
Engagement Range of any enemy units, it counts as having made a
charge move this turn declared against any enemy units it is set up within Engagement Range of.
AMIDST THE RUBBLE- While a unit from the Talons of the Emperor army is wholly within its deployment zone, it is not an eligible target for the Reductus Saboteur’s remote explosives.
- The Talons of the Emperor player’s deployment zone counts as Difficult Ground, and models receive the benefits of Dense and Light Cover while wholly within it.
- Genestealer Cults units cannot be set up or finish any kind of move within 6" of the Talons of the Emperor player’s battlefield edge.
DEADLY AMBUSHThe Genestealer Cults player can use the
Loyal Throng Ruse. If they do, they must select the Neophyte Hybrids unit for that Ruse.
VICTORY CONDITIONSAt the end of each battle round, if a unit from the Talons of the Emperor army is within 3" of the Genestealer Cults player’s battlefield edge, the Talons of the Emperor player can remove it from the battlefield as escaped and score 1 victory point.
At the end of the battle, if the Talons of the Emperor player has scored 3 victory points, they are the winner. If they scored 1-2 victory points, it is a draw. If they scored no victory points, the Genestealer Cults player is the winner.
MISSION BONUS- All units in both player’s armies pass any out of action tests after the battle.
- The victor gains 2 Requisition points after this battle, instead of just 1.

Though their ranks had been thinned by ambush, the Talons of the Emperor fought their way clear and pressed on, deeper into the darkness. The hunt neared its conclusion, but who was predator and who prey?
THE ARMIESThe Talons of the Emperor army consists of: 1
Blade Champion; 1
Allarus Custodians unit containing 3 models; 1
Prosecutor,
Vigilator or
Witchseeker unit containing 5 models.
The Genestealer Cults army consists of: 1
Patriarch; 1
Reductus Saboteur; 1
Primus; 1
Magus; 1
Neophyte Hybrids unit containing 10 models.
THE BATTLEFIELDUse the map below to create a battlefield that is 44" x 30".
DEPLOYMENTThe Genestealer Cults player sets up their army first. The Patriarch must be
set up underground. Each other unit in the Genestealer Cult player’s army must be
set up in ambush.
Then the Talons of the Emperor player sets up their army. Each unit in the Talons of the Emperor army must be set up
wholly within their deployment zone.
FIRST TURNThe Genestealer Cults player has the first turn.
BATTLE LENGTHThe battle ends when one of the following conditions has been met:
- All units in the Talons of the Emperor army have been destroyed.
- The Patriarch, Primus and Magus have been destroyed.
DEADLY AMBUSHThe Genestealer Cults player can use the
Stalking Hunter Ruse. If they do, they must select the Patriarch unit for that Ruse.
VICTORY CONDITIONSAt the end of the battle, the player with the most victory points is the winner.
Each time a unit in the Talons of the Emperor army is destroyed, the Genestealer Cults player scores 1 victory point.
The Talons of the Emperor player scores 1 victory point each time one of the following units is destroyed: Patriarch; Primus; Magus.
MISSION BONUSEvery eligible unit in the victor’s army is
Marked for Greatness after the battle, instead of just one unit.
- If the Patriarch is destroyed as a result of an ability from or attack made by the Blade Champion, the Blade Champion gains 5 experience points and it automatically passes an out of action test after the battle (if any).
- If the Blade Champion is destroyed as a result of an ability from, psychic power manifested or attack made by the Patriarch, the Patriarch gains 5 experience points and it automatically passes an out of action test after the battle (if any).
