I started this map months ago, now is ready for testing:http://warlight.net/SinglePlayer?PreviewMap=21769
This map is thought to simulate trade.
There are 12 main cities that contain 4 markets (wool, silk, cotton and gold).
For every pair of markets that a player owns, he will get one extra army.
3 markets, 3 armies; 4 markets, 6 armies; 5 markets, 10 armies... and so on.
To incentivate collaborative playing, owning two markets on a single city is penalized with -5 armies.
This mechanics have been hard to feature, because, as you can see, there are 388 bonuses for only 405 territories.
It would be interesting trying with local deployment, to create an efect like Chaos' Saligia
but i'm afraid that would disable markets, as each one belongs to 14 different bonuses.
Any volunteers for testing?