Image:BackArrowGreen.png List of resources in Civ3 Spice is a luxury resource that makes content people happy in cities that are connected to it by a trade route, and can also be traded to other civilizations. Spice can be found in Forests and Jungles and generate an extra 2 commerce on their squares. Building a Marketplace in a connected city enhances the happiness bonus provided by Spice and other luxury resources.