I disliked Agendas in Civ 6 because they were often overly specific, the AI interactions for it triggered too often causing annoyance, and many created weird interactions.
I've argued this before, but for instance, take Harald: The way the game communicates his agenda is that he likes Civs who also have large navies. And so, in his interactions, he is friendly with players with larger navies and disappointed at players with smaller navies.
This is an example of the agenda being correct, imo, but the way it is communicated being weird. If Harald/Norway get bonuses from exploiting undefended coastal lines, it makes sense that it is coded in such a may that makes him more likely to declare war on Civs with weaker navies.
But, then, why on Earth is he looking all depressed and annoyed at my weak navy? Why is he content when my navy is strong? Shouldn't the interaction have shown him grudgingly conceding that my navy is strong, and shown him content at my weak defenses?
TLDR: Agendas should help direct the AI towards creating relationships which help maximize their leader advantages.
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Examples of good agendas in Civ VI, which causes interactions that feel right, flavourful and natural:
- Teddy Roosevelt: "Likes peaceful civilizations that have a city on his home continent. Dislikes civilizations starting wars on his continent."
- Saladin: "Dislikes civilizations following other Religions or waging war on followers of his Religion."
- Gilgamesh: "Likes civilizations who are his Declared Friends. Dislikes anyone denouncing or attacking his friends."
- Kristina: "Tries to collect as many Great Works as possible, and likes those who leave them to her. Dislikes civilizations with many Great Works."
- Wu Zetian: "Likes civilizations who pose no threat. Dislikes civilizations with strong military or ones with nearby cities."
- Ba Trieu: "Likes civilizations that have never declared war on Vietnam. She will never forgive those who have, with her opinion decreasing further with each turn the war lasts, and this decreased opinion never recovering."
Examples of good agendas, poorly communicated or implemented:
- Harald;
- Wilhelmina -> The agenda fits well with her bonuses, but it's not well implemented. It makes her more likely to develop enmities with Civs far away who can't trade with her initially, but long range routes are more likely to have higher gold yields. It's also just plain annoying to deal with, since often there's nothing the player can realistically do.
Examples of bad agendas:
- Jayavarman: "Likes civilizations with many Holy Sites and with a high average city Citizen Population. Dislikes civilizations lacking in either of these areas." -> Makes him more likely to declare wars and therefore more likely to conquer cities with no district spots left for Holy Sites, which goes against Jayavarman/Khmer bonuses.
- Cleopatra (Ptolomaic): "Likes civilizations with high Food output. Dislikes those with low Food output." -> Too gamey and encourages Cleo to occupy cities with low food yields, which by extension are likely not adjacent to rivers.
- Hojo Tokimune: "Likes civilizations that have both a strong military and strong Faith or Culture outputs. Dislikes civilizations that are strong in military but weak in Faith or Culture." -> Too specific, imo. Provides flavour but has minor, if any, gameplay implications that align with his bonuses.
- Amanitore: "Tries to keep the maximum number of Districts in each city and likes those that do the same. Dislikes civilizations that do not build as many districts as possible in their cities." -> This is a bit silly. It creates those sort of interactions that feel gamey and unnatural. Like a redditor telling me I'm playing the game incorrectly.