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EU5: Dominate the World Quickly - Guide to War Score Cost and Expansion
Maximize your expansion in EU5 by mastering the war score cost. Learn how to use advantageous CBs, manipulate province control, and leverage modifiers for quick and efficient conquests.
To obtain the 'Following Up on Threat' CB:
To obtain the 'Following Up on Threat' CB:
Other important modifiers:
By focusing on reducing the war score cost, you can expand faster and complete world conquest.
1. ⚔️ Understanding War Score Cost and the 'Following Up on Threat' CB
- ✅ War score cost is crucial for expansion in EU5.
- ✅ Unlike EU4, claims in EU5 apply discounts to the entire country, not just the claimed province.
- ✅ The 'Following Up on Threat' CB is more accessible than province claims at the start of the game.
| CB | Conquest Cost | Subjugation Cost | Antagonism |
|---|---|---|---|
| Following Up on Threat | -25% | -25% | -25% |
| Parliament Approved Claim | +25% | +25% | +25% |
To obtain the 'Following Up on Threat' CB:
- Vassalize or release vassals with claims on other provinces.
- Fabricate a claim and declare war for its cause, obtaining a 25% reduction in cost.
- Alternatively, if you are a great power, you can threaten with war to improve a standard fabricated CB to 'Following Up on Threat'.
00:00 - 01:26
1. ⚔️ Understanding War Score Cost and the 'Following Up on Threat' CB
- ✅ War score cost is crucial for expansion in EU5.
- ✅ Unlike EU4, claims in EU5 apply discounts to the entire country, not just the claimed province.
- ✅ The 'Following Up on Threat' CB is more accessible than province claims at the start of the game.
| CB | Conquest Cost | Subjugation Cost | Antagonism |
|---|---|---|---|
| Following Up on Threat | -25% | -25% | -25% |
| Parliament Approved Claim | +25% | +25% | +25% |
To obtain the 'Following Up on Threat' CB:
- Vassalize or release vassals with claims on other provinces.
- Fabricate a claim and declare war for its cause, obtaining a 25% reduction in cost.
- Alternatively, if you are a great power, you can threaten with war to improve a standard fabricated CB to 'Following Up on Threat'.
03:54 - 06:17
2. 🌍 Maximizing Expansion: Control, Modifiers, and the Importance of the Year
- ✅ Prioritize taking provinces with zero control for the maximum reduction in war cost.
- ✅ Conquering the enemy capital changes the control map and reduces costs in future wars.
- ✅ The impact of control on war cost scales with time.
| Era | Control Impact |
|---|---|
| Traditions | 10% |
| Renaissance | 20% |
| Discovery | 40% |
| Reformation | 60% |
| Absolutism | 80% |
| Revolutions | 100% |
Other important modifiers:
- Expansion: Reduces the cost of war against different religions and increases belligerence.
- Belligerence: Reduces the cost of war and improves the creation of CBs.
06:18 - 08:25
3. ➕ Additional Modifiers and Strategic Considerations for Conquest
- ✅ You get reductions for shared culture and religion with the populations of the provinces you conquer.
- ✅ There is a 10% reduction for each level of difference between your country rank and that of your enemy.
- ✅ Being a military hegemony reduces the war score cost by 10%.
| Source | War Cost Reduction |
|---|---|
| Lutheran | 5% |
| Era of Absolutism | 10% |
| Era of Revolutions | 20% |
| Diplomatic Focus (Renaissance) | 5% |
By focusing on reducing the war score cost, you can expand faster and complete world conquest.
08:26 - 09:28
4. 🤝 Final Tips: Avoiding the 'Swiss Cheese' and Managing Vassals
- ✅ The AI in EU5 will not accept disconnected territories ('Swiss cheese'). Check the peace cost modifier to avoid this.
- ✅ You can make peace with vassals separately if they are disloyal and take their lands.
- ✅ If they are loyal, you must include them in the main peace agreement.
09:29 - 10:00
5. 🛠️ Quick Trick: Resetting War Enthusiasm in Single Player
- ✅ In single-player mode, you can close and reopen the game to reduce or reset the war enthusiasm modifier for a peace agreement.