***UPDATE 2014-12-22***
Here is a post compo version, with AI and tutorial! Maybe it could help you understanding what's going on in the normal game. AI took me 6h to be correctly polished, tutorial took me 3 hours, and UI improvement took me lot of time something like 10h. Still no sound anyway.

Enjoy :)

----Original post----

That's a game about trade and "diplomacy" in the 1000's, but I only had one day of work for it (have to go for IRL job, I'll try to work on the computer in the flight).

The help is included in the game

In few words :
some region produce naturally ressources, and bring you money.
You can open these ressource to your other region, so they bring you more money.
You can export these ressource to other kingdom so they like you.
If they like you enough (multiple try if you want it), you can ask for open ressource route for their ressource (but verify through intell they have it)
You can manufacture some natural ressource to make more money.

I would have love to had :
-visual representation for trade routes (1h).
-a small behaviour for the AI (4h).
-a correct reset game button (1h) (but F5 is OK :D)
-a music, and some sounds when clicking to understand when kingdom accept (2h)

Actually the game is quite playable, but some kingdom are really unbalanced compared to other. I don't know what were the regional product of the time, I run short of time to make a descent research.

Have fun. I hope I have time for a post compo in the next month.

PS: I forgot to precise 2 things in the instruction :
- That's not because a kingdom refuse you an exchange once you should not try again, even the same turn.
- Your army deplete over time, this is a compensation due to the fact that the AI cannot attack you

***EDIT 2014/12/08***
I am sorry for the lack of feedback by the game, I'll try to explain what happens in the mechanics :

Your kingdom name and color is indicated top left, with your available money.

ABOUT RESSOURCES
A region naturally produce ressources. Some are more valuable than other, the iron is worth 3, and the Garment 20. Some can be transformed in a building, Grape can be converted to Wine for instance. The duties (Money/turn) collected in a region correspond to the sum of the values of all the resource available in the region.

ABOUT TRADE ROUTES
A route allow a region to furnish an other region with a ressource it have. A region furnished via trade route can also furnish trade routes, and transform ressources. A traderoute devaluate both region, by 2 (total 4) by land, and by 4 (total 8) by sea.

ABOUT DIPLOMACY
Another kingdom will automatically refuse a trade if none of you have the ressource for the route. If you open a route with something valuable they don't have, they are more likely to accept, and will like you more. if you request something they have and you don't, they are more likely to accept if they like you. If you want a route with tem, offer first and ask what you want after. If they refuse at first, you can retry, maybe the envoy was not clear enough. A bit of money always help as well.

ABOUT WAR
Your army deplete over time, to simulate external aggression. You need more guy to take the targeted region, but that's not sure. But with twice more that should be ok. Pillage brings you twice the value of the region, if your army is successful. Agressive act makes other kingdom angry, but if you pay them, they can forget it.

ABOUT SCORE
Each 100 florints give you 1 point (but a bug prevent the update of the display after last turn)
Each territory controlled give you 1 point
Each different kind of ressource in your kingdom give you 1 point
The overall diplomacy cumulated give you point. A war situation could be around -4/-8, a warm relation +1/+2 a very good +5/8.

If you have question do not hesitates to ask them in the comments.