Here is what I want.
Name: The Dark Age: Cry of the Empies
Genre: Simulator/RTS
Publisher/Developer: Anyone who woud do it.
System: PC/PS3/360
Concept: A Empire simulator, with very in depth castle construction (stone for stone if you want), And a decent RTS with overhead for attack units.
Coming to life.
Starting with your empire in, The Dark Age, you dont have too much. You are a newly appointed baron over a small plot of land, which you will need to cultivate, protect, and expand into. As you gain in wealth and power, you can buy new lands from other barons, and expand your small empire. However, you are not yet king, and are forbidden to have an army. You expand rapidly, and become a major power. You then start a 'revolt' and capture the capital, and become king. You then gain the ability to give land to 'barons' to take care of stuff. You also get the ability to take away. If he isnt doing his job, you find someone who will. At this stage, you now have an army. A real army, trained to fight, kill, and conquer. However, now that you are king, the other 'empires' want your land. And they will do anything for it, and you need to upgrade the old kings crumbling fortress, and turn it into a mighty castle. (or whatever you want, so long as you think it will keep your head on your shoulders when your invaded)
At this phase you can design your castle the way you want. Brick for brick, design a 'wall' template, to determine how think it is, then just drag/drop the wall you designed in large 'chunks' Design towers the way you want. And all the while running accurate physics simulators. Also, to build the castle, you will need rock, have a 'accurate' rock quarry, where you can watch the 'serfs' cut the rock, and then haul it to the castle, one rock at a time. (not litterally, but visually see the quarry grow, to engulf massive areas, and deep depths)
Run accurate physics models for the 'weapons'. Also have the ability to pick from 'hundreds' of options for seige equipment as well, becuase a small catapult, wont break a 'ultra' thick wall. So your gonna need to build that Thing that launches rocks the size of houses.
Also, to make things more complex, a highly detailed economy, with trade, happyness, and other assorted things that highly effect the peoples happyness. Just because you, the king, is safe in that castle. Your peole outside are dieing. Their not gonna stand for that. The might just start helping the invading army, instead of you!
Overall, this would be a game that would rival the 'galactic' space games, that allow you to conquer the universe. This would be similar, except, its in the middle ages, real time, and a blast, to watch that wall, collapse, block for block, like, a real wall would when that house sized rock slams into the wall. This game would not be for the faint of heart, and it's not for everyone. But I feel there's enough people wanting this, to make it worth while.