Whatmajor technological progress there was in Western Europe between 400-800? There are some inovations, but in contrast, I can make quite a few examples of technology that was forgotten/fell out of use in W. Europe.
I'm sorry I probably failed to explain the point to you.
It makes no sense to have a CK2 or EU4 or Imperator set in this time period. Game set in the Dark Ages should be different. And to have different game you need to leave your mindset of history as a line of growing/declining civilization levels. In a Dark Agest game you don't play as somebody who knows the history of Ancient Greeks and Romans and even less so you know the paths of medieval and post-medieval world. You start in 5th, 6th or 7th century with the tools and perspectives of people of that time and you are up to the challenge.
The devs may face ignorance of people who aren't able to leave their personal mindset, so all they need is to promote their game as something challenging and interesting. For some this may seem impossible, but I think this era can offer very interesting and challenging gameplay.
In a Dark Ages game you start as...
- Roman empire/Justinian - massive empire with large depopulated regions and tribes willing and asking for land. You have great cultural, social, economic and military technologies, but for some reason you lack resources to support them to be effective egainst your foes and if you want to be able to protect your own people/resources, you need to change something. How will you reform the empire and restore its old greatness? Will you give some land to the Barbarians and make them allies, or will you try to defend undefendable?
- Romano-Gaelic aristoctracy in France/Hispania or elswhere in the Empire, which is occupied by Germanic tribes. You have the resources, technologies and knowledge of the old times, but not the military and political power... and the world around you is no longer stable enough to give you the luxuries of distant lands to support the lifestyle of your grandfathers. So you need to trade what you have for... security, military and other powers. You need to be a true diplomat in negotiating with those primitive Barbarians living around you and make them accept the civilized manners of Romans.
- or you lead a Germanic tribe. You and your people are in a country, which was wealthy and prosperous. You hold a military and political powers which were given to you by your tribe - your ancestors and your people who you rely on. But you lack the prestige, knowledge and technologies of very wealthy (post-Roman) landlords living in between you and other chiefs, desperately seeking your protection and offering you the riches of a world that was lost. Will you prefer to get their prestige and technologies by accepting their titles, ways of One God and Roman laws, or will you rather stick to the old traditions of your own people, risking the losss of those great technologies... and risking that those landlords will offer them to your neighbour? Will you try to restore the civilization of the Empire your father invaded, or will you create your own?
That's the basic setup you should be able to understand even if your knowledge is limited to your own perspectives only. But then there is also the world outside Europe:
The Sassanid Persia heading to a new civilization peak in the 5th-7th centuries, building new civilization based on Mazdai religion and Persian culture, facing the Romans in the West and Turkic people in the East, creating a completely new concept of army based on heavy infantry (which translated to the west as the cataphracts)
Early Christian Armenia, Just Christianized Nubia or Axum, who were at peak of their civilizations in the 4th-8th centuries, Himyarite Yemen, Central Asian civilization with its great irrigations supporting unprecedently rising populations making Soghdians the traders connecting Persian world with China and India...or you can lead the Garamantes of the Sahara with their chariot based empire, the Soninke people of West Africa, who have just started building their own cities, connected the sub-Saharan savanna into interconnected trade network to create a kingdom... to meet the Berbers of the Sahara with the new animals capable of crossing the desert in large caravans... and use these camels to sell your abundant gold to the peoples across the big desert - be it the Romans or the zealous Arabs with their new religion. Or you can saddle the horse and ride the energy of rising Islam.
Staying in perspective of post-Roman world, a game set in Dark Ages can offer you some sort of post-apocalyptyc world, but in historical framework. Or a completely different interesting world, if you are able to step outside the box
Yeah, I am taking the European perspective. I don´t think anyone here is trying to say that other parts of the world have seen a lot of development.
I'm sorry that I failed to be clear enough so you could understand it. I indeed am trying to say that the world of 4th-9th century wasn't limited to developments of the post-Roman world, and other parts of the world have indeed seen a lot of development. I know most of us haven't learned it at school, but it doesn't mean that the world outside did not exist and evolve on its own.