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GChapman

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Please update the AI. Its behavior is really bad. Just some examples, i think, someone else has also some improvements for the AI. I put the complaint in black, then a way to improve in red.

- It picks way to much bad fights during wars. Therefore you can easily beat the AI. Just have some stack sit in the mountains, and some stacks behind to reinforce. The AI will attack you in the mountains and you will win due the reinforcements.
- Instead of only looking at the army in that province, let the AI also have a look at the the possible reinforcements. Sometimes i already has the feeling the AI already looks at the possible reinforcements. If that is true: Just give that more weight for the decision 'dont attack that army'.

- The AI choose ideagroups based on there real history. As long as the game and there real history are the same, it is not a problem. But when the game diffuse of the real history, another idea group makes maybe more sense. If you beat France such that it is a OPM, it chooses ideagroups like it is the scary BBB. And if some OPM growns to a great power, it chooses idea groups based on being a OPM. That makes no sense to me.
- Dont use a plain list for each nation to let them pick the next idea group. Make the decision a bit more dynamic.

- The AI dont know when it is time to siege. Sometimes defeated the enemy and you can siege all provinces. But the AI is much smarter: Instead of sieging 10 provinces with a 3k army, they siege 1 province with a 30k stack. That doesnt make sense most times (if enemy is defeated and has (almost) no army. Ive seen that more than 1 vassal choose the some province to siege, which lead to a 150k stack sieging a single province. That really doesnt make sense.
- Just add some rulers to the algorithm that let the AI spread out his troops if the army of the enemy is almost not existend. Also add the rule to not siege the same province if there is already a large enough army.

- It cant handle autonomy (it looks like it never increase / decrease autonomy). As consequence, the AI is hit very hard by rebels. Again and again and again. Easy for you at enemies, they are weakend by the rebels. You can take down most nations by just siege all provinces, let them get 20 WE and peace out. Since the have no army, rebels break the country. If the AI was able to handle rebels better, rebels have less change to break there country, since the spawn less. Also: if you look at your vassals, it is pretty annoying the get rebels all the time. And you will get almost none. I sometimes even end up fighting rebels in vassals, instead beating the army of other nations.
- Add some algorithm for the AI to lower / increase the autonomy. Seems for me that it is not that hard to come up with some rules. Just like 'if unrest is less then -10, increase autonomy' and 'if unrest is higher then 10, decrease autonomy'. This rules are really simplistic (a human make much smarter decisions), but even this simplistic rule will improve the AI a lot. It can handle rebels much better.
 
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GChapman

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Just another example of how bad the AI is in warfare: As western nation, your at war with a blobbing Russia. Your allies / vasssal has the following strategy: Walk all the way to East Asia and start sieging the provinces there. Getting attrition all the way to the East. This doesnt make any sense... The better start sieging when the cross the border with Russia. Walking all the way to the other side of Russia make no sense. Dont know if this is a combi of point 1 and 3 or a completely new point of how bad the AI is...
 

grommile

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Just another example of how bad the AI is in warfare: As western nation, your at war with a blobbing Russia. Your allies / vasssal has the following strategy: Walk all the way to East Asia and start sieging the provinces there. Getting attrition all the way to the East. This doesnt make any sense... The better start sieging when the cross the border with Russia. Walking all the way to the other side of Russia make no sense. Dont know if this is a combi of point 1 and 3 or a completely new point of how bad the AI is...
The AI is very bad at deciding which provinces to besiege if it doesn't have a border with, or a core or claim on, any provinces owned by the country it's attacking.

You see this at work in phenomena like Gujarati troops marching to Morea when they're allied with the Timurids in a war against the Ottomans.
 

MisterDisaster

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This is a real problem and should be a PRIORITY during next patch. As Prussia I've had Poland three times attacked me and three times getting it's ass handed down and giving provinces to me during 100 year period.
 

lolada

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Few problems I've seen frequently.

- Black-flagged Iberians going on foot through Africa and Europe to get back home
- There are still stucked sleeping armies, colonizer nations. France overrun whole Spain but half of Spain's army is camping in Brasil (some of it was blackflagged also).
- AI declare wars but can't do naval invasion for some reason. Also example Sweden trying to take Gotland for 150 years with 6 transports and Gotland has 9 units on the island.
- AI forget to fight rebels in wars and their country dies - rebel killing should be priority for AI
 

Tullio25

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11lh9x4.jpg


I am defending the empire as Austria against Denmark, i am ruling over Burgundy and Bohemia as well.
Holstein is refusing to peace Denmark and this war is killing me! Please do something about this stupendous wars! I'm really really upset here!:mad:
 

grommile

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How, exactly, have you ended up with 17 WE in that war?
 

kralex

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Too many bugs and too much railroading to protect a terrible AI against the player. That about sums up my EU4 gripes.
 

Tullio25

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Do you have lots of occupations? And maybe even the war goal? Transfer occupation to Holstein.

If you look at the the first picture you will see that wargoal is complete...

Finally it ended....but the AI is so stupid....look at this:

35ld7hs.jpg


Danish ruller is about to die and because of the negative prestige, will loose the PU under Norway and Sweeden.And gues what Holstein does, just end the PU with Norway...
I just burned 1500 dip points for this war and much other things.My head really hurts! Please paradox improve the AI!
 

Incompetent

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The call for peace! We have 70 warscore and Holstein is refusing to end the war! It is frustrating how is abusing from this war!

I really feel like 'call for peace' should only affect the war leader. The logic of 'call for peace' (which is basically 'don't prolong the war after you've already won') breaks down if you're not the one responsible for prolonging the war.
 

grommile

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I really feel like 'call for peace' should only affect the war leader. The logic of 'call for peace' (which is basically 'don't prolong the war after you've already won') breaks down if you're not the one responsible for prolonging the war.
You are the one responsible for your country continuing to be in the war, however.
 

Incompetent

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You are the one responsible for your country continuing to be in the war, however.

Sometimes yes, but as a general principle I don't think you should be bullied into selling out for a separate peace, especially in a defensive war. You have a duty to protect the warleader, but it's his responsibility to negotiate an end to the conflict. Non-warleaders get screwed enough already by how peace negotiations work, now that the 'don't let the warleader negotiate for me' option has been removed.

Also, consider coalition wars. Slamming non-leader coalition members with 'call for peace' when they are literally forbidden by game mechanics from negotiating a peace is totally unfair.
 

grommile

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Also, consider coalition wars. Slamming non-leader coalition members with 'call for peace' when they are literally forbidden by game mechanics from negotiating a peace is totally unfair.
You are responsible for you joining the coalition. (The impact on the AI is kind of awkward, though.)
 

demoix

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I really wish console command "selflearningai" would work in real someday.......