- Joined
- Feb 13, 2020
Zlewikk made a very informative 40 minute long video about the EU5 AI:
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- In relation to the first timelapse that was posted. Having to constantly fight civil wars was the AI's biggest bottleneck in that build. The AI is fine with expanding for the first 2 centuries but after that it basically stops in Europe.
- Second timelapse that was on the newer Oct 22 patch: It fixed the AI's issue with civil wars giving them more resources to expand, civil wars still occur but aren't as devastating to the AI as before, AI was able to expand a bit more but once again in Europe they would unite their home regions in the first centuries then stop expanding.
Is the AI not expanding because it's dogshit or because it's so good that it stalemates? - Talks about how 2 months ago he hated playing the lategame because of it being a micro hell thanks to AI building forts everywhere, and that the AI can still see everything and would be able to attack him very easily destroying his entire armies. Battles were very fast so there wouldn't be time to reinforce and he would have to reload. The issue that was previously posted here about where the AI wouldn't colonize the new world was actually because AI countries were trying to colonise each other instead.
- In a patch after that one, the AI was more aggressive, with coalitions almost instantly declaring war making them a big challenge if you got really big ones. Once again the faster battles resulted in his armies being raped and requiring a reload
- Next patch introduced possibility of 0% maintenance on sliders, the meta became setting armies to siege everything down at the start of the war, was a terrible experience. This patch fixed colonization. It starts kicking off only in the late 1500s/early 1600s and before that there aren't many colonies.
- Playing as Sweden the AI kept kicking his ass in wars. Just because they aren't expanding much doesn't mean they are weak since they're building up instead.
- Early October: Florence AAR. Small tags can be very challenging because of lacking large armies making them easy to wipe out and lacking power to be able to acquire good alliances. But then when it game to mid-size tags in Italy it became much more challenging, with him needing to sweat to take them on. Fort maintenance slider was given a minimum of 50%. Levies now take 20-30 years to fully recover after being wiped
- October 16 patch, the one the first timelapse was on. It will be the one his Oct 31st video as the Ottomans was played on. The levy recovery is even slower now. Unifying Anatolia is ok but after that expanding into the Balkans is challenging. Sieging Constantinople took 1500 days, Armenian tags are difficult to fight because of a vassal swarm. The issue with expansion into Balkans is that it generates antagonism with the Balkans, Ruthenia, Russia, Hungary, and Naples. One thing the AI doesn't leverage is improving relations to decrease antagonism gain.
- Confirms the issue of hugboxes, massive alliance chains of AI nations that were difficult to break apart for him, says that it's probably impossible for the current AI to have done.
- Explanation for the Ottomans not expanding into the Middle East: Mamluks are the strongest nation in Europe and very stable, on par with France. Very challenging to fight as the Ottomans owning all of Anatolia and half of the Balkans because of them having a massive levy swarm. Standing armies have also been nerfed so it's even more difficult for him to do. Therefore also impossible for the AI.
- His conclusion for this segment: Constant civil wars slowed down the AI expansion up to Oct 22 patch, now fixed. Huge alliance chains thanks to large diplo capacity even for mid-sized states prevents the AI from expanding. This is the one of the dev's current priorities. He did 2 observer games on this patch:

Europe in 1822 - AI is more opportunistic when it comes to grabbing random pieces of land. Morocco owning small bits of Iberia, Bohemia snaking into Savoy. Once again AI expands well in the first 2 centuries.
- Poland didn't expand much but was very tall, 11 million pops (1 million at start), 250k manpower, 10k base tax (says that it's a huge amount, that in his Ottomans campaign had 1.5k in 1540 and was 2nd highest in it), 8k income, 5k balance, 70k regular army. They seem small but are super tall. Says that 5 mid-sized AIs will be more of a challenge than 1 larger AI thanks to the smaller ones having more control over their lands. This Poland was allied to Hungary, Bohemia, Lithuania, Upper Bavaria, and Brandenburg.
- France: 33 million pops, 1.1 million manpower, 58k ducats in the bank, 18k base tax. 12k income, 3k balance, 91k regular army. Allied to Bohemia, Ottomans, Trier. Colonised Brazil, Argentina, Colombia, and North Canada.
- Great Britain had 90 million pops, 1.3 million manpower, 100k in bank, 18k base tax, 140k regular army, allied with Bohemia, Ottomans, and Rev. France.
- Ottomans: Seem fucked up but had 10 million pops, 600k manpower, 126k in bank, 7k base tax. 5k income, 46k regular army size.
- Muscovy: 11 million, 2k base tax
- Castille: 25 million pops, #2 great power, 25k base tax thanks to colonies
- Asia bordergores way harder than Europe, China keeps uniting and exploding into a shit ton of tags
- Africa gets united more

2nd observer run:
- Africa and Asia like before
- Europe once again has 200 years of expansion before stalemating from alliance chains
- Ottomans blocked by the Eretnids, which were allied to Mamluks
- All of Russia and Ruthenia allied together
- The AI is challenging and very aggressive to the player. It can still be exploited on some fronts.
- Mentions that the pace of battles has been slowed down in the newer patch making them easier since you are now able to reinforce
- In new patch war score cost modifiers limited to make players and AI struggle more with conquering and controlling lands.
- AI should focus on techs that expand regiment size, by rushing it you can double your army size while having the same number of regiments. It should also prioritise fort techs. Doubling regiment sizes allows you to easily rush lower tech forts.
- AI should embrace standing armies faster since it is very rich thanks to playing tall.
- He thinks that small tags should be able to get more alliances, mid-sized tags should be able to get less.
- AI is really good at naval invasions but does it with transport-only fleets, allowing their entire levies to get wiped.
- Summarises that the AI should be able to expand better past 1550, before that it is fine, but that the game doesn't get less fun, only more challenging. This would allow for bigger countries that have less control over their land, and less hugboxes.
- Says that paradox is very aware of the criticism of this
tl;dr: - The AI isn't retarded at all, in fact it is very good at warfare and can play tall very well.
- In older patches the AI was getting raped by civil wars, this has been fixed.
- The big issue is as was previously speculated that after 200 years the countries start forming massive alliance chains forming stalemates preventing expansion
- The reason for the Ottomans remaining small is because Mamluks are the most OP nation in Europe on par with France, having massive levy hordes that are impossible for AI Ottomans to take on. Ottoman expansion into the Balkans generates antagonism with all of the Balkans, Naples, Hungary, and the entire Orthodox world. In EU5 coalitions attack almost instantly.
- Warfare against the AI can be very challenging, battles were so fast that there would be no time to reinforce if attacked leading to often getting stack wiped, a newer patch has made them last longer to remedy this
- Mentions that losing your levies can be really really bad because now it can take over 30 years for them to fully recover
- Standing armies aren't as OP as before where you could wipe out levy armies 4x the size of yours.


