[TOMT] [GAME] Risk-like game involving trade and expansion

It is possibly a board game but I only played it online. It involves trading lumber, bricks(/clay) and two more items. Trade ratio was not fixed and you could negotiate with players. It also involved building roads and I think houses. I played with 3 AI if I recall correctly so 4 players total. The map was an island and ports were important somehow. The map was also split into various regions which yielded one of the four items.