密谋（Intrigue） 是中世纪和王国风云系列中通往胜利的两种途径中的一个。它更加间接，集中于通过诡计打败其他角色。
计谋
任何角色都可以成为计谋（Scheme）的目标。每名角色都可以同时计划一个阴谋（敌对）和一个私人计谋（友好），但是同一个角色不能同时成为一个敌对阴谋和一个私人计谋的目标。进行中的阴谋可以在任何时间取消。
每个计谋都有一个计谋力量，而目标都有一个计谋阻力。这两者都由双方的谋略能力与间谍主管的谋略谋能力决定。
每个月进行中的计谋都会有概率获得进展，这个概率由计谋发起者的计谋力量和目标的计谋阻力决定。一但计谋获得100%的进度就会执行，以执行时的成功概率决定该计谋是成功还是失败。
阴谋（敌对）
敌对阴谋是隐秘的，该阴谋的隐秘值将决定执行过程中是否会被目标发现。高成功率可以提高阴谋的隐秘值。
想要同时进行两个敌对阴谋需要学习阴谋生活重心中的计中计技能。
| 计谋 | 需要技能 | 同谋 | 成功效果 | 秘密效果 | 需要技能 |
|---|---|---|---|---|---|
| 谋杀 |  Intrigue
|
|
目标被杀死 | Character only gains the Murder secret | 无 |
| 绑架 | Intrigue
|
|
目标成为囚犯 | Character is not accused of the Crime of kidnapping | 绑票大师 |
| 制造牵制 | Intrigue
|
|
获得目标的牵制 | Can execute the Scheme again | 相对事实 |
| 宣称权位 |  Stewardship
|
|
获得目标主头衔的宣称 | Do not lose a large amount of Prestige | 能者居之 |
Hostile Schemes can have Agents - characters who are close to the target and increase the Scheme Power based on how close they are. Agents may join a scheme if they stand to gain something or dislike the target. They can also be bribed with 
Gold to slightly increase their acceptance and a 
Weak Hook will greatly increase it. Characters who are Terrified of the Scheme target will never become Agents except through the use of a 
Strong Hook. Agents will grant the following amount of Success Chance depending on their closeness to the target and their Intrigue.
| Closeness | Success Chance |
|---|---|
| Spymaster | +75 |
| Spouse | +50 |
| Guardian | +50 |
| Best Friend | +50 |
| Friend | +30 |
| Lover | +30 |
| Concubine | +30 |
| Closeness | Success Chance |
|---|---|
| Court Physician | +30 |
| Councilor | +25 |
| Close Family | +20 |
| Powerful Vassal | +15 |
| Extended Family | +15 |
| Nemesis | +15 |
| Any other | +10 |
A scheming character is protected from discovery while the Scheme progresses but its Agents are not. If an Agent is discovered the target will gain a +5 Hostile Scheme Resistance modifier for 2 years.
私人计谋
私人计谋没有隐秘值且没有同谋。如果失败，在短时间内无法对同一目标再次进行相同的计谋。
| 计谋 | 效果 | 影响成功率的因素 | 基础成功率 | 最小成功率 | 前提条件 |
|---|---|---|---|---|---|
| 拉拢 | 目标对执行者 +25 好感 |
|
50% | 20% | 无 |
| 勾引 | 目标成为情人 |
|
5% | 0% | 无 |
| 求爱 | 获得威望，目标成为灵魂伴侣 |
|
0% | 0% | 目标有合适性取向 |
| 交友 | 目标成为朋友 |
|
5% | 0% | 交个朋友技能 |
| 私奔 | 目标加入发起者的宫廷并结婚 |
|
25% | 5% | 双方拥有灵魂伴侣关系 |
Secrets
Characters acquire Secrets when they do something that is a Crime or frowned upon. Secrets can be discovered through random events or via the Find Secrets spymaster task. If a secret is discovered the character who uncovered it has two options. One option is to expose the secret, which will apply various negative effects upon the target based on how serious the Secret is. The other option is to blackmail the target. If the target agreed the character will gain a Weak Hook if the secret is Shunned and a Strong Hook if the secret is Criminal. If the target refuses the secret will be exposed.
| Secret | Severity | Description |
|---|---|---|
 Attempted Murder
|
 Depends on who was the target
|
This character has attempted murder. |
| Murdered
|
Depends on who was the target
|
This character is a murderer. |
 Is a Cannibal
|
 Depends on whether faith has the Ritual Cannibalism tenet
|
This character consumes human flesh. |
| Is a Deviant
|
 Depends on the Deviancy crime doctrine
|
This character has a predilection for socially unacceptable acts. |
| Is a Sodomite
|
 Depends on the Same-Sex Relations crime doctrine
|
This character engages in sexual intercourse with other men. |
| Is Incestuous
|
 Depends on the Consanguinity marriage doctrine
|
This character has sexual relations with close family members. |
 Is a Non-Believer
|
Always Shunned
|
This character believes in a false god, or none at all. |
| Is a Witch
|
 Depends on the Witchcraft crime doctrine
|
This character practices witchcraft. |
 Is the illegitimate child
|
 Depends on the Bastardry marriage doctrine
|
This character is a bastard. |
| Lover
|
  Depends on the Adultery crime doctrines
|
This character is someone's illicit lover. |
The Is the illegitimate child secret is removed if the real parents eventually join in marriage or concubinage.
牵制
A Hook represents that a character owes you a favor or that you can coerce them in some way. Hooks can be gained in a variety of ways and can be used to force a character to do something you want. They come in two varieties: weak and strong.
- A Weak Hook can only be used once, and is then spent.
- A Strong Hook can be used multiple times, with a cooldown between uses. It also prevents the character from taking hostile actions (such as joining a faction) against the one holding the Hook. Unlike weak hooks, strong hooks can be used to force a character to become an Agent in a murder scheme.
| Hook | Strength | Duration | Source | Can be fabricated |
|---|---|---|---|---|
| Blackmail (Weak) | Weak
|
10 years, or until the secret is exposed | Blackmail character interaction over a secret which is a shunned practice |
|
| Favor | Weak
|
10 years | Random events Ransoming an imprisoned character for a favor Negotiating to release an imprisoned character for a favor Faction members who helped put claimant on the throne receive a hook on new liege |
|
| House Head | Weak
|
Permanent | House Head over when a child is born |
|
| Indebted | Weak
|
10 years | Random events |
|
| Manipulation | Weak
|
10 years | Random events |
|
| Threatened | Weak
|
10 years | Random events |
|
| Blackmail (Strong) | Strong
|
Until the secret is exposed | Blackmail character interaction over a secret which is a criminal practice |
|
| Fabrication | Strong
|
10 years | Fabricate a Hook scheme |
|
| Loyalty | Strong
|
Permanent | Random events |
|
| Threatened Life | Strong
|
10 years | Fabricate a Hook scheme |
|
Spending Hooks
Hooks can be spent (used) in a variety of ways.
- A hook can force a character to accept a marriage proposal, join your council, come to your court, join a faction, or vote for your preferred candidate in elective successions.
- A liege can use a Hook on a vassal to negotiate a feudal contract without incurring tyranny.
- A vassals who has a Hook on his Liege can use the Demand Council Position character interaction.
- A vassals with a Hook on his Liege can declare war on other vassals of their liege, even if ther crown authority would normally prohibited this.
- Though it is very difficult to get a hook on your Head of faith, doing so would ensure the head of faith agrees to any one request you might make (such as granting you a divorce or a claim on a title).
- A strong hook can be used to force the person to join a murder scheme, though weak hooks cannot do this.
- The Level 1 Steward Lifestyle Perk "Golden Obligations" allows demanding payment for hooks, assuming the person you have a hook on has the money to pay it.