2. SimCity – Building Beyond a Megalopolis
It is definitely possible to build beyond a Megalopolis, but how well you do mostly depends on how patient you are. You have to protect your green space and make good use of it once you’re passed the 500,000 mark.
The trouble is, most people don’t find that they have any green space left at that point. That’s where patience comes in. You have to let your city grow over longer periods of time, and you have to build slowly. You can’t be too hasty in your building plans.
If you manage to attract 600,000 Sims, you get to see the “true ending” of the game, though truthfully, there is no real end to the game. You can keep on building in perpetuity, though you will no doubt run out of space pretty quickly thereafter.