1. Introduction

2. Methodology

a

Fig. 2a - Spectator Empire ​

Hegemonic Imperialists (Commonwealth of Man)

Federation Builders (United Nations of Earth)

Evangelizing Zealots (Kingdom of Yondarim)

Spiritual Seekers (Scyldari Confederacy)

Erudite Explorers (Lokken Mechanists, Voor Technocracy)

Ruthless Capitalists (Chinorr Stellar Union)

Peaceful Traders (Iferyx Amalgamated Fleets)

Slaving Despots (Tzynn Empire, Xanid Suzerainty)

Honorbound Warriors (Kel-Azaan Republic)

Harmonious Collective (Jehetma Dominion)

Xenophobic Isolationists (Maweer Caretakers)

Hive Mind (Ix'Idar Collective)

Determined Exterminator (XT-489 Eliminator)

Driven Assimilator (Tebrid Homolog)

Rogue Servitor (Earth Custodianship)

Fanatic Befrienders (Blorg Commonality)

3. Results

3.1 Raw Numbers

Fig. 3.1a - Total Numbers ​

Fig. 3.1b - Relative Distribution ​

Hegemonic Imperialists (511 empires, 25.46% of total)

Erudite Explorers (173, 8.62%)

Slaving Despots (164, 8.17%)

Evangelizing Zealots (159, 7.92%)

Spiritual Seekers (153, 7.62%)

Honorbound Warriors (152, 7.57%)

Federation Builders (137, 6.83%)

Democratic Crusaders (107, 5.33%)

Fanatic Purifiers (70, 3.49%)

Harmonious Collectives (65, 3.24%)

Hive Minds (61, 3.04%)

Machine Intelligences (59, 2.94%)

Xenophobic Isolationists (54, 2.69%)

Ruthless Capitalists, Decadent Hierarchies and Devouring Swarms (each 25, 1.25%)

Rogue Servitors and Determined Externminators (each 18, 0.90%)

Peaceful Traders (15, 0.75%)

Driven Assimilators (12, 0.60%)

Migratory Flocks (4, 0.20%)

3.2 Occurence



Fig. 3.2a - Occurence ​





Hegemonic Imperialists (99)

Erudite Explorers (86)

Evangelizing Zealots (81)

Slaving Despots (81)

Spiritual Seekers (80)

Federation Builders (78)

Honourbound Warriors (72)

Democratic Crusaders (66)

Fanatic Purifiers (52)

Harmonious Collectives (51)

Hive Minds (47)

Machine Intelligences (43)

Xenophobic Isolationists (39)

Ruthless Capitalists (23)

Decadent Hierarchies (23)

Devouring Swarms (23)

Determined Exterminators (17)

Rogue Servitors (16)

Peaceful Traders (12)

Driven Assimilators (14)

Migratory Flocks (4)

3.3 Maximums



Fig. 3.3a - Maximums ​





3.4 Mode

Fig. 3.4a - Mode ​

4. Conclusion

Tier 1: Overrepresented



Hegemonic Imperialists​ Tier 2: Common



Erudite Explorers

Spiritual Seekers

Evengelizing Zealots

Slaving Despots

Federation Builders

Honorbound Warriors

Demoratic Crusaders​ Tier 3: Uncommon



Harmonious Collectives

Xenophobic Isolationists

Fanatic Purifiers

HIve Minds

Machine Intelligences​ Tier 4: Rare



Ruthless Capitalists

Peaceful Traders

Decadent Hierarchies

Devouring Swarms

Determined Exterminators

Rogue Servitors

Driven Assimilators​ Tier 5: Forgotten



Migratory Flocks​ Tier 6: Joke



Fanatic Befrienders

Metalheads

​

As of the current version 2.1.4, there are 23 different AI Personalities assigned to non-player empires; determined by ethics, authority, civics and founder species traits. These personalities govern the "broad strokes" behaviour of the AI controlling this empire, as well as often giving diplomatic modifiers towards other empires or certain diplomatic action. For example, a 'Federation Builders' AI will happily seek out allies, sign migration treaties and enlighten primitive species. In contrast, a 'Slaving Despots' empire is aggressive, opportunistic and, as their name states, always seeking new slaves to exploit.In my opinion AI Personalities are a somewhat overlooked aspect of the game, which I presume is due to an issue that becomes very apparent very quickly when you look at the numbers.To gther a large quantity of AI Empires, I generated 100 1000-star ring galaxies with 20 AIs but neither Fallen Empires nor Marauders. All those galaxies were generated as the "AAA Savants", a generic Machine Empire which through its name ensured it would always be at the very top of the contacts list.Through this series I was able to gather 2007 AI empires, the 7 additional to the 2000 expected generated by what I have come to call the "CoM-UNE Anomaly".Regarding Preset Empires, the following AI Personalities occur *slightly* more often than they should due to having at least one of those empires associated with them:With the exception of the Blorg, all of those appeared.absolutely dominate the game. In fact, they are almost three times the numbers of the second-most common AI Personality,andcomplete the ranks of the "common" empires.occur somewhat less common than them, but are still not quite rare.The next rung of empires is populated byandThe rarest tier of AI Personalities are; followed byandsit at the very bottom.Fanatic Befrienders and Metalheads did not appear.Next we will take a look of theof the different AI personalities, or more bluntly in how many of the 100 generated galaxies they spawned in. Once moretake the lead, withandin pursuit.andare next, followed byandandare the rarest empires to occur.As the numbers of this graph are much more readable, I won't say much here. Imperialists and Explorers are way up there, followed by Honorbound Warriors. The rest appears in rather normal numbers.(Fun Fact: I had to do the last 50 galaxies again because I forgot to save my spreadsheet. In the original data set however, there was a galaxy with 11 Hegemonic Imperialists.)Lastly the mode of the AI Personalities, or in plain speak the most common number that appeared throughout the created galaxies. Hegemonic Imperialists crush the competition.I think with the gathered data we can pretty securely divide the AI Personalities into several tiers:Now, what does this mean for Stellaris? Well, I see two problems.The first, and vastly more important one, is the dominance of Hegemonic Imperialists. There are many complaints about the game's AI, but I think people would give it a lot more leeway if it at least were interesting. Hegemonial Imperialists are the least interesting AI Personality in the game, quite apt described way back in the pre-release Blorg streams as "your average 4X players". If I may suggest a fix, I would create a second "Materialist" AI personality. Erudite Explorers are also somewhat too undefined, in fact I have seen both Fanatic Authoritarian and Fanatic Individualist Explorers. We could have say a "Calculating Technocrats" personality for Materialists that are Authoritarian/Xenophobe/Militarist. This would not only make Erudite Explorers more defined, but also absorb a lot of Materialist empires that right now fall under Hegemonic Imperialists.And secondly, could Migratory Flocks please be more common? They have always (I have run a similar experiment in 1.3 and Utopia) been least common non-joke AI in the game, and yet I see them as one of the more interesting ones.