To contribute to a project, simply harvest the items required by the project when the project is running. The items go into your barn and credit for harvesting them goes to the co-op.

The flag shows the current items required. Pictured is "Cheesed off!" after enough milk has been collected and cheese is still needed.

The highest 3 contributors get extra loyalty points on every project. Milk, wheat, dandelions and almonds get double the contribution credit. Everything else is 1 to 1 contribution credit. (20 corn is 20 contribution points.)

The table below lists all of the projects and known levels. Every day, one random (no pattern found yet) project has a multiplier which increases the amount of points. Clicking in the bottom left of the project icon will show the bonus applied to the projects. You can also use the village tractor to increase the points earned for a project. You can turn the tractor on, off, and set it's bonus to see the effect in the table.

Your tournament score is the sum of all the project points you complete while the tournament is active (every other week).