This is how you apply custom game rules on Windows Store

1. Tap the new game button in the app bar, to launch the new game screen.

2. Select how many players to participate in the game.

3. Swipe to show the list of all custom game rules.

The game rules are locked until you buy them.

4. Select the custom game rules that you want.

5. Swipe to the left to the new game screen again, and tap the big start button.

Learn details about each custom rule