This is inspired by GovernorSimulus' maximum population quest. but instead of fitting as many people in a map, I'll focus on getting 12k population in Old Kingdom period.
My personal rules in this quest will be:
* Very hard difficulty
* 12,000 population
* 100 prosperity rating
* All houses are residences or better
* All roads are connected, optional for entertainment venue
* All schools, libraries, mortuaries and senet houses are well supplied.
* Personal funds only used for kingdom rating
* Smooth population census - no aging problem
* Final city should runs with minimal intervention
I have long wondered how massive one housing block can be with one school, library, mortuary without using long-walk.
The result: one massive windmill housing block combining four improved flexi-blocks, consists of 18 elegant manors and 124 common residences, all made possible by Bast temple complex.
Credit to StephAmon for the excellent windmill article.
Problem #1: Making the windmill works
All four sections extend 29 tiles from centre. Each have their T-junction 6 tiles away from the intersection. It has 2 court houses, 3 tax offices, 14 bazaars, countless of firehouses and 1 in everything else.
All buildings near the centre have superb fire protection. Not so at the windmill edges. Although rarely, when a house burst into fire, the cascading desirability downgrade, followed by spreading fire, would bring down houses like domino due to the ridiculous high density.
Toward the end I was running out of space to fit enough common residences. As a result, most bazaars were displaced to outside of the block.
The windmill would have been more stable and efficient if I hadn't try to fit so many houses in it. Adding an outer ring probably helps but will certainly make it more complicated and bulky than it is.
Problem #2: Self-made food shortage
Because of the rigidity of windmill block and my preference to have the dock closer to ship entrance, I couldn't reach the north meadow. So even with the help of Bast temple complex and setting to import 4,000 grain and 2,500 fish, there is only food for 12,640 people.
Extra storage yards have been built as buffer to missed harvest or import.