Buildings that require that resource will gradually raise in maintenance costs until you control enough of that resource.

Units that after an upgrade would require that resource can't be upgraded, no matter if they already require it or not.

Units that require that resource can't heal.

All units and buildings in production queues are cancelled and can't be produced until you control enough of that resource (production you already invested is stored as if you chose to cancel the production project).

because an improvement is pillaged or a trade is finished), you suffer penalties for missing that resource: If you lose access to a strategic resource (e. Also, you can't upgrade a unit if after the upgrade, you would be missing a resource that that unit requires. The supply of a certain strategic you have determines the number of such buildings and units that exist in your army, are built in your cities, and are queued for production (or currently produced) in your cities. As Paper isn't placed on the map, it needs no improvement and unlocking technology.Īll units and buildings that need a strategic resource use one copy of it, the only exceptions being the Agribusiness (using two Horses) and the Nuclear Missile (using two Uranium). To obtain them, they need to be improved by a worker or work boat. Initially, they are not visible and become so when certain technologies are discovered. There are seven strategic resources, six of them are found on the map. Unlike other resources, they come in a quantity specified on the tile they appear on and add to a stock of that resource that you can use to trade, build units or buildings with it until it is depleted. Most of them are found on the map, but can also be obtained by other means. Strategic Resources are resources that allow you to build some units and buildings that require them.

Civ 5 workable tiles