Introduction
Siege rituals are what happens when rituals stop being weird private magic and start affecting walls, armies, gates, supply wagons, battlefields, and civilians.
They are not for the round where the Fighter is already trading Strikes with a commander. They are for the night before the assault, the hour before the gate falls, the desperate ward around the field hospital, the attempt to protect grain during a blockade, or the awful ritual a villain starts because ordinary war was not bad enough.
Use siege rituals with Battlecry, battle magic, war campaigns, skirmish warfare, troops and garrisons, and siege weapons and battle vehicles.
Rating Key
| Marker | Meaning |
|---|---|
| ● | Avoid. |
| ● | Situational. |
| ● | Good. |
| ● | Fantastic. |
Siege Ritual Use Cases
| Siege ritual job | Best use | Watch for |
|---|---|---|
| Fortification defense ● | Protect walls, gates, bridges, towers, camps, hospitals, and evacuation routes. | If the ward is passive, attach it to a visible objective or timer. |
| Fortification breach ● | Create a route, weaken a defense, open a gate, or neutralize magical protection. | Do not let it erase the whole siege. It should create an opening, not replace the adventure. |
| Supply protection ● | Preserve food, medicine, ammunition, scrolls, components, or transport. | Strong only if supply pressure matters in the campaign. |
| Battlefield warding ● | Protect a ritual site, banner, engine, temple, command tent, or troop route. | Needs enemy counterplay or it becomes background text. |
| Death delay or evacuation magic ● | Buy time for civilians, wounded allies, retreating troops, or a last defense. | Make the clock visible. The drama is in what the extra time costs. |
| Terrain movement or concealment ● | Forest approaches, hidden roads, moved obstacles, and battlefield positioning. | Weak on flat battle maps with no terrain pressure. |
| Disease or atrocity magic ● | Villain plots, horror wars, or grim campaigns with explicit table consent. | Do not use casually. This shifts tone hard. |
Hot take: siege rituals are strongest when they do not win the battle. They should make the party choose which part of the battle becomes possible.
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How Siege Rituals Differ From Battle Magic
Battle magic is encounter-facing. It helps with formation, control, morale, positioning, and tactical pressure while initiative is running.
Siege rituals are campaign-facing. They happen before, around, or between encounters. They change what the encounter is about.
| Magic type | Best question |
|---|---|
| Battle magic | What does this spell do this round, this minute, or this encounter? |
| Siege ritual | What does this magic change about the wall, army, battlefield, supply line, or campaign front? |
| Utility spell | What obstacle can this spell solve without turning into a whole scene? |
| Ordinary ritual | What campaign-scale magic happens outside the war layer? |
If the ritual only gives someone a better turn in combat, it probably belongs in battle magic. If it changes whether the battle happens on the wall, in the street, or at the field hospital, it belongs here.
Scene Design
Run siege rituals as missions.
| Element | Good question |
|---|---|
| Time | Can the ritual finish before the gate falls, enemy scouts arrive, supplies spoil, or the next assault begins? |
| Place | Does it require the wall, bridge, shrine, gatehouse, battlefield, command tent, corpse field, or engine yard? |
| Assistants | Who risks themselves to help: casters, engineers, soldiers, priests, scouts, prisoners, or civilians? |
| Skills | Which trained characters matter besides the primary caster? |
| Components | What material, name, map, banner, weapon, relic, corpse, or location makes the ritual possible? |
| Interference | What can enemies do to interrupt, corrupt, copy, or exploit the ritual? |
| Consequence | What changes if it succeeds, fails, partially works, or is abandoned? |
Do not hide every stake. Players should know enough to choose whether the risk is worth taking.
Best Characters For Siege Rituals
| Character role | Siege ritual value |
|---|---|
| Commander ● | Excellent for coordinating assistants, guards, timing, troop movement, and battlefield objectives. |
| Wizard or Witch ● | Strong for Arcana, Occultism, wards, siege magic, research, and strange ritual access. |
| Cleric, Champion, or Oracle ● | Excellent for divine protection, sanctified sites, undead wars, morale, funerary rites, and civilian stakes. |
| Druid or Ranger ● | Strong for terrain, weather, wilderness approaches, food, animals, scouting, and natural defenses. |
| Alchemist or Inventor ● | Excellent when components, engines, ammunition, repairs, tools, fire, smoke, antidotes, or field labs matter. |
| Investigator or Rogue ● | Great for finding the ritual plan, sabotaging enemy preparations, stealing texts, and identifying false orders. |
| Pure striker with no relevant skills ● | Useful as guard, escort, or objective defender, but not the ritual engine. |
War rituals reward the party that treats skills as part of military power. The person with the best sword is not always the person who keeps the bridge standing.
Skill Coverage
| Skill | Siege ritual job |
|---|---|
| Arcana | Wards, siege magic, spell counters, constructs, engines with magical components, and ritual diagrams. |
| Religion | Sanctified defenses, battlefield funerals, undead, divine protection, morale rites, and cursed wars. |
| Occultism | Pacts, fear, dreams, curses, spirits, forbidden signals, and enemy ritual corruption. |
| Nature | Weather, plants, animals, terrain movement, natural barriers, and wilderness supply lines. |
| Crafting | Siege engines, walls, ammunition, ritual frames, repairs, tools, and material preparation. |
| Society | Orders, military law, records, banners, faction rituals, occupation pressure, and public legitimacy. |
| Survival | Routes, weather signs, camps, scouting, hidden approaches, and safe ritual sites. |
| Medicine | Field hospitals, disease control, triage scenes, wounded soldiers, and evacuation magic. |
| Lore | Warfare Lore, Engineering Lore, Siege Lore, Heraldry Lore, Undead Lore, Fiend Lore, or regional war knowledge. |
Hot take: Crafting deserves more spotlight in siege rituals than most tables give it. Someone has to know whether the bridge, engine, wall, or ritual frame can survive the magic.
GM Core Procedure
Use GM skill DCs, subsystems, hazards, treasure by level, and war campaigns before inventing a new mini-game.
| Step | GM question |
|---|---|
| 1 | What war problem does the ritual address? |
| 2 | What does success change on the map, front, fort, supply line, or morale track? |
| 3 | What time pressure makes the scene urgent? |
| 4 | Which skills, assistants, materials, and locations are required? |
| 5 | What enemy action can interrupt or complicate the ritual? |
| 6 | What failure state still creates play? |
| 7 | What reward, access, or consequence follows afterward? |
The safest structure is a victory-point style scene: several checks, a clock, enemy pressure, and partial outcomes. One roll can work for a small ritual. A real siege ritual usually deserves more table time.
Battlefield Failure States
| Failure state | Use when |
|---|---|
| Alarm ● | Enemy scouts, officers, spirits, or siege crews detect the ritual. |
| Backlash ● | The ritual damages the site, wounds assistants, creates conditions, or starts a hazard. |
| Corrupted protection ● | The ward works, but the enemy can exploit a flaw later. |
| Partial breach ● | The ritual opens a route, but not the route the party wanted. |
| Supply loss ● | Components, food, ammunition, medicine, or engines are consumed or ruined. |
| Civilian cost ● | Use carefully. This belongs in campaigns that have already agreed to that tone. |
| No effect ● | Usually weak. Use only if lost time itself changes the war front. |
Failure should not be a dead end. It should turn the siege into a worse, sharper, more specific problem.
Enemy Counterplay
Siege rituals are more fun when enemies can respond.
| Enemy response | Table use |
|---|---|
| Scout the site | Forces stealth, guards, false camps, and counterintelligence. |
| Strike the assistants | Makes Guardian, Champion, and defensive play matter. |
| Sabotage components | Gives Rogue, Investigator, and Crafting characters work. |
| Counter-ritual | Turns Arcana, Occultism, Religion, Nature, and Lore into a duel of preparation. |
| Attack elsewhere | Forces the party to choose between finishing the ritual and saving a different objective. |
| Exploit the result | The ritual succeeds, but the enemy uses the changed battlefield in a new way. |
Hot take: the best counter to a siege ritual is not always a stronger enemy caster. Sometimes it is a squad of tired soldiers with orders to burn the supply wagon.
Monster Core Pressure
Monster Core and Monster Core 2 make siege ritual scenes better because different enemies interfere differently.
| Creature pressure | Siege ritual use |
|---|---|
| Troops and garrisons | Organized bodies can guard, pressure, retreat, reinforce, or be affected by army-scale magic. |
| Fiends | Pact rituals, corrupt bargains, enemy cults, and consequences that outlive the battle. |
| Undead | Battlefield corpses, morale horror, disease tone, funerary rites, and sanctified protection. |
| Constructs | Siege engines, magical labor, breached defenses, engineering problems, and arcane sabotage. |
| Fliers | Force cover, anti-air planning, warded roofs, signal towers, and evacuation pressure. |
| Burrowers | Make walls less absolute and make terrain rituals matter. |
| Swarms | Threaten assistants, supplies, and cramped ritual sites. |
Do not use monsters as random interruptions. Use them because their traits make the ritual scene harder in a specific way.
Equipment And War Tools
Siege rituals should point to physical things on the map.
| Tool or item | Why it matters |
|---|---|
| Siege weapons and battle vehicles | Rituals can protect, empower, jam, hide, sabotage, or aim the tools that change a battlefield. |
| Banners and whetstones | Good symbols for morale, authority, and martial ritual focus. |
| Staves and wands | Useful for support magic around the ritual, not replacements for the ritual itself. |
| Consumables | Let the party prepare for backlash, scouting, wounds, poison, fire, and hard travel. |
| Armor and shields | Matter when ritual assistants must survive arrows, blasts, and desperate charges. |
If the ritual does not change a visible object, route, formation, wall, engine, or clock, ask why it is a siege ritual.
Consent And Tone
Siege rituals can touch famine, plague, trapped civilians, mass death, corpse fields, military occupation, and magical atrocities. That material can make a war campaign powerful, but it should not ambush the table.
Use session zero before disease weapons, starvation, civilian catastrophe, or ritual sacrifice become play. This is not squeamishness. It is competent GMing.
| Tone element | Table check |
|---|---|
| Disease magic | Is plague warfare acceptable in this campaign, or should it stay off-screen as villain context? |
| Civilian harm | Are civilians central stakes, background stakes, or not a focus? |
| Body horror | Are corpse fields, undead creation, and ritual sacrifice in-bounds? |
| Moral injury | Does the group want hard choices, or heroic clarity? |
| Military command | Are PCs comfortable giving orders that risk NPC lives? |
Hot take: "war is dark" is not a substitute for consent. It is just a sentence people say before making preventable table problems.
Common Mistakes
| Mistake | Better approach |
|---|---|
| Treating siege rituals like shopping-list buffs | Tie every ritual to a place, timer, objective, or front. |
| Letting one ritual win the war | Let it open a route, buy time, protect a target, or change a battle, not delete the campaign. |
| Forgetting enemy counterplay | Give the enemy scouts, sabotage, false information, counter-rituals, or secondary attacks. |
| Ignoring noncasters | Let commanders, engineers, scouts, medics, and lore specialists matter. |
| Making failure boring | Use alarms, backlash, partial results, supply loss, corrupted wards, and new missions. |
| Using atrocities casually | Align tone first. Some magic belongs to villains, not the player shopping list. |
Hot Takes
- A siege ritual should feel like a war mission, not a menu option.
- If the ritual has no clock, add one.
- If nobody can interrupt it, move it off-screen or make it a downtime reward.
- The best siege ritual reward is often access, position, or survival, not damage.
- Disease and famine rituals are villain tools unless the table explicitly wants a grim campaign.
Related Guides
Continue with rituals, battle magic, war campaigns, skirmish warfare, troops and garrisons, siege weapons and battle vehicles, Battlecry, GM skill DCs, subsystems, hazards, and session zero.
