Originally available as part of a Dice Tower Kickstarter, pack C and then as part of an add-on (Treasure Chest Promos) during the Robinson Crusoe Collector's edition Gamefound campaign. Special roof tiles introduce additional usage of your roof. Enough determination may help you build your roof with an upgrade, so it will provide you functionalities in addition to keeping your belongings dry. The better your roof is the more options you can unlock. Upgraded roof provides additional pawns, which can be used around your shelter, to take advantage of the neighboring territories.