So why are you bringing that up with me? I'm not making the game. You're debating a point that wasn't made. My point was, merchants shouldn't show up as characters cause Europe was feudal, and this era of feudalism didn't have a powerful middle class of merchants.
To equate that to "Byzantium was feudal" is a nonsensical logic leap.
Because Western Europe did not stay feudal as if it is something that's static. Western Europe prior to the collapse of the Western Roman Empire was not feudal. It became feudal because of a number of historical reasons, which in part is influenced by the collapse and shrinking of many urban centres. Once Western Europe became prosperous enough. you start to see a decline in the power of the feudal nobility.
Feudalism in Western Europe is not something that's static. Any player playing the game can reshape Western Europe, if the conditions are right. A successful player that manage to urbanise Western Europe should not be stuck in feudalism just because Europe was still feudal in the 9th/10th century.