How is power score calculated?

[Tobold]

The diplomatic options in Millennia aren’t great, and the AI bases a lot of its war or peace decisions on their relative power score compared to yours. So it would be really interesting to know how exactly the power score is calculated, and what I would have to do to bring it up. Anyone knows?

[xyzapip]

Did only minor tests here:
1. Troops add (disband one and see the impact)
2. Self-controlled terriorty counts more than vassal territory (make your city a vasall and see the impact)
3. City improvments did do nothing in my test (destroyed improvments and it had no impact)
4. Troop experience did not matter in the few tests i did

[The Former]

I believe your overall power score is the combined power score of your armies, but I'm not certain. At least I'm sure it's a big factor. Those are made up of unit power score which I... think is derived from unit Attack and Defense?

Originally posted by xyzapip:

Did only minor tests here:
2. Self-controlled terriorty counts more than vassal territory (make your city a vasall and see the impact)

Makes sense, each self-controlled territory is a new potential production source for fresh units.

[Daggerfall]

Wiki:

"Power score, also known as power or strength, is a mixture of 6 values:

10 points per Region Population
10 points per Vassal Population
0.25 points per controlled Tile
10 points per Town
12 points per Tech Unlocked (regardless of Age)
4 points per Unit Age (Warband from Age 1 is 4 pts, Spear from Age 2 is 8 pts, etc.)
The relative power score for getting into Conquest and Generals is based on your "next top rival" meaning whoever is most powerful, not including you. So if you have the highest power score you'll need to be 1.5x stronger than the next highest player to get into the age, and if you're not the strongest then your score will be calculated as some fraction of whomever is the strongest

A similar value is calculated for winning Conquest, and winning Generals, except Age of Generals combines all of the power scores of the nations in your Faction, and compares it to every nation not in your Faction (including nations that aren't in a Faction), basically your Faction vs the Rest of the World."

[Ethren]

Originally posted by Daggerfall:

Wiki:

"Power score, also known as power or strength, is a mixture of 6 values:

10 points per Region Population
10 points per Vassal Population
0.25 points per controlled Tile
10 points per Town
12 points per Tech Unlocked (regardless of Age)
4 points per Unit Age (Warband from Age 1 is 4 pts, Spear from Age 2 is 8 pts, etc.)
The relative power score for getting into Conquest and Generals is based on your "next top rival" meaning whoever is most powerful, not including you. So if you have the highest power score you'll need to be 1.5x stronger than the next highest player to get into the age, and if you're not the strongest then your score will be calculated as some fraction of whomever is the strongest

A similar value is calculated for winning Conquest, and winning Generals, except Age of Generals combines all of the power scores of the nations in your Faction, and compares it to every nation not in your Faction (including nations that aren't in a Faction), basically your Faction vs the Rest of the World."

Not all units are counted towards power score though. I can say without a doubt that peasants spawned with the Chivalry power have 0 effect on power score. Ran some tests just to make sure.

[vivas]

Good info.

[Questionable]

Originally posted by Ethren:

Originally posted by Daggerfall:

Wiki:

"Power score, also known as power or strength, is a mixture of 6 values:

10 points per Region Population
10 points per Vassal Population
0.25 points per controlled Tile
10 points per Town
12 points per Tech Unlocked (regardless of Age)
4 points per Unit Age (Warband from Age 1 is 4 pts, Spear from Age 2 is 8 pts, etc.)
The relative power score for getting into Conquest and Generals is based on your "next top rival" meaning whoever is most powerful, not including you. So if you have the highest power score you'll need to be 1.5x stronger than the next highest player to get into the age, and if you're not the strongest then your score will be calculated as some fraction of whomever is the strongest

A similar value is calculated for winning Conquest, and winning Generals, except Age of Generals combines all of the power scores of the nations in your Faction, and compares it to every nation not in your Faction (including nations that aren't in a Faction), basically your Faction vs the Rest of the World."

Not all units are counted towards power score though. I can say without a doubt that peasants spawned with the Chivalry power have 0 effect on power score. Ran some tests just to make sure.

Could it be that units with no base upkeep don't add to power score?

[OmegaDestroyer]

Doubtful, since the AI seemingly doesn't pay any upkeep and always has a high power score.

[Questionable]

Originally posted by OmegaDestroyer:

Doubtful, since the AI seemingly doesn't pay any upkeep and always has a high power score.

I mean units with a base 0 gold upkeep like megafauna and peasants, not units that have a x0 modifier to their cost (spartans and raiders still count towards power score when you give them their x0 modifier)