NEW DATE! I will be traveling for work and so have to move this to June 11th.
One of the first Euro-games I ever played, in Puerto Rico players assume the roles of colonial governors on the island of Puerto Rico. The aim of the game is to amass victory points by shipping goods to Europe or by constructing buildings.
Each player uses a separate small board with spaces for city buildings, plantations, and resources. Shared between the players are three ships, a trading house, and a supply of resources and doubloons.
The resource cycle of the game is that players grow crops which they exchange for points or doubloons. Doubloons can then be used to buy buildings, which allow players to produce more crops or give them other abilities. Buildings and plantations do not work unless they are manned by colonists.
The twist is that during each round, players take turns selecting a role card from those on the table (such as "Trader" or "Builder"). When a role is chosen, every player gets to take the action appropriate to that role with the player that selected the role getting a small privilege for doing so. So careful that the roles you choose don't help other people!