Each player is running their own vineyard. You are attempting to grow grapes and sell them to increase your wealth and also undertake research to improve your knowledge so that you are able to grow each grape harvest more efficiently.
The game is card based and during each turn you typically play a card from your hand and then draw another card from the draw pile.
The game goes over a number of rounds. Each round is ended when one of the players undertakes a grape harvest. The person who harvests is able to gain wealth while their opponent has the potential to improve their knowledge.
The winner is the first person to either 12 points of wealth (with at least 4 points of knowledge) or 6 points of knowledge (with at least 5 points of wealth).