What I mean by "Underground" is basically what the Black Market is today. I was thinking that there could be an underground market where players could have the choice to trade their goods for more gold coins but have increased danger per trade and a chance that the gold could be stolen by some pirate. Haven't really thought it through, just thought it was cool.

+1

+1
Why is the forum gone?

I see a few issues with the idea of a 'Black Market' : one is that the differential in prices must be high enough to encourage trade there, given the higher risk of loss : trouble is, that differential may also encourage players to 'churn' goods from the legitimate market straight into the Black Market for a quick profit : one would have to set the loss risk quite high to prevent/reduce that form of 'farming'.
Another solution would be to restrict the Black Market to a smaller range of goods with fixed quantities on offer : i.e I arrive in port : go to 'Tavern' : click on the 'Dodgy Deals' link : get perhaps 3 offers : example would be : 'Snotty Sid will buy 100 crates of Tools for 2750 gold coins!' : I have the tools, I like the price : I click on the offer : then the tools are taken from my ship/warehouse : then the nasty bit, the random chance I never get paid for them : 'Your men have searched the port, but Snotty Sid has vanished, as have your goods!'.

Danik wrote:Another solution would be to restrict the Black Market to a smaller range of goods with fixed quantities on offer

Agreed.

I suppose it should be also possible to be offered goods as well : 'Dodgy Derek will sell you 275 crates of Iron for 1500 gold coins!' : with the same risk of being cheated on delivery : 'Your men opened the crates to find them filled with rotten food!'

-1 Disapprove, just seems a little hard to find a place for in the current game, although it is a good idea.

I like it
This would add some rpg.
+1

The idea isn't horrible, but it's far from a finished idea. As well, I'm not even sure we could come up with a way of implementing this.

-1 Disapprove

I like the idea but needs some real fluff to add to make it feasible. Id like to move this to discussion as this has potential to be something worth of looking at.

Discussion works for me, it is a cool idea - Skyhawk