The game comes with five dice: a 4-sider, 6-sider, 8-sider, 10-sider, and 12-sider. When you roll the 4-sider, use the number that's upright.
The game uses a shorthand form describing the number and type of dice to roll: Xd#, where "X" represents the number of dice to roll and "d#" represents the number of sides on the dice. For example, if you're asked to roll 2d6, that means to roll 2 6-sided dice and add their values together. Sometimes the shorthand includes a "+" or “-“ and a number listed after the die, meaning that you add that number to, or subtract it from, the total of the roll (not each individual die rolled). So 2d4+2 means to roll 2 4-sided dice, total them together, then add 2. No matter how many penalties are applied to a roll of the dice, the result can't be reduced below 0.
Sometimes, the type of die that you need to roll is determined by your skill. If you're told to use your Strength skill + 1d8, and your Strength die is a d10, roll 1 10-sided die and 1 8-sided die and add them together to determine your result.
If a card calls for a die roll that affects multiple characters or situations (for example, if it says that each character at a location is dealt 1d4 damage), roll separately for each.