there should be ways to upgrade your character after the starting screen where you choose their abilities- for example, to increase trade, you should be able to buy a trade skill point, for travel, you should find the skill points in the chests, or given to you by the people you save, and for attack and defence, they should be given to you upon killing a certain group, such as attack for bucaneers and defence for enforcers, just as when you are given weapons after killing either group, or mercenaries.
its a great game, and if the maker read our comments, and then updated it so, this would be fantastic and definately worthy of the mighty 5/5, but for now, i shall give it a 4/5 because i like it so much, yet there are a lot of problems with it
the slow-mo effect due to lag actually really makes it nicer, while im controlling a swordsman or whatever and theyre running along with an army behind them :)
market was the last thing i got fully upgraded, and oh, how i regret that- maxed out market buys and sells gold at a 1-1 basis, and obviously over that for crystal and stone- its so good!