The goal of this mod is to add a greater sense of realism to unit production. Finally in Gathering Storm multiple resources can be utilized by units.

**Features**- Copper is now a strategic resource. It's used for Bronze Age units, cannons, and modern ammo.
- Nearly all units including uniques have strategic resource requirements and many require more than one resource. Example: Knight costs 20 Iron and consumes 1 Horses per turn.
- All land units beginning in the Modern era require the Factory.
- All naval units beginning in the Renaissance era require the Shipyard.
- Industrial Steel Enhancement: all land and naval units in the Modern and Atomic eras receive a +5 combat strength bonus if the player owns Coal.
- Composite Armor Enhancement: all land and naval units in the Information era receive a +5 combat strength bonus if the player owns Uranium.
- Industrial Zone receives a production adjacency bonus for each Lumber Mill.
- Copper, Iron, Niter, Coal, Aluminum and Oil spawn on a wider variety of terrains based on my own research.

**Strategic Resource Requirements**- Spearman costs 10 Copper and consumes 1 Copper per turn
- Heavy Chariot costs 20 Copper and consumes 1 Horses per turn
- Horseman costs 10 Iron and consumes 1 Horses per turn
- Quadrireme costs 20 Copper and consumes 1 Copper per turn
- Swordsman costs 20 Iron and consumes 1 Iron per turn
- Knight costs 20 Iron and consumes 1 Horses per turn
- Crossbowman costs 10 Iron and consumes 1 Iron per turn
- Pikeman costs 10 Iron and consumes 1 Iron per turn
- Musketman costs 10 Iron and consumes 1 Niter per turn
- Caravel costs 10 Copper and consumes 1 Niter per turn
- Bombard costs 20 Copper and consumes 2 Niter per turn
- Frigate costs 20 Copper and consumes 2 Niter per turn
- Privateer costs 10 Copper and consumes 1 Niter per turn
- Field Cannon costs 10 Copper and consumes 1 Niter per turn
- Cavalry costs 20 Horses and consumes 1 Niter per turn
- Ironclad costs 20 Iron and consumes 1 Coal per turn. +5 combat strength with Coal.
- Ranger costs 10 Iron and consumes 1 Niter per turn
- Biplane has 0 cost and consumes 1 Oil per turn
- Infantry costs 10 Iron and consumes 1 Copper per turn
- Artillery costs 20 Iron and consumes 1 Copper per turn
- Battleship costs 20 Iron and consumes 2 Coal per turn
- Submarine costs 20 Iron and consumes 1 Oil per turn
- AT Crew costs 10 Iron and consumes 1 Copper per turn
- Tank costs 20 Iron and consumes 1 Oil per turn
- Anti-Air Gun costs 10 Iron and consumes 1 Copper per turn
- Machine Gun costs 10 Iron and consumes 1 Copper per turn
- Aircraft Carrier costs 20 Iron and consumes 2 Oil per turn
- Destroyer costs 20 Iron and consumes 1 Oil per turn
- Helicopter costs 10 Aluminum and consumes 1 Oil per turn
- Nuclear Submarine costs 20 Iron and consumes 1 Uranium per turn
- Mechanized Infantry costs 10 Iron and consumes 1 Oil per turn
- Rocket Artillery costs 20 Iron and consumes 1 Oil per turn
- Mobile Sam costs 10 Iron and consumes 1 Oil per turn
- Fighter costs 20 Aluminum and consumes 1 Oil per turn
- Bomber costs 20 Aluminum and consumes 1 Oil per turn
- Jet Fighter costs 20 Aluminum and consumes 1 Oil per turn
- Jet Bomber costs 20 Aluminum and consumes 1 Oil per turn
- Missile Cruiser costs 20 Iron and consumes 2 Oil per turn
- Modern AT costs 10 Iron and consumes 1 Oil per turn
- Modern Armor costs 20 Iron and consumes 1 Oil per turn
- Spec Ops costs 10 Aluminum and consumes 1 Oil per turn
- Drone costs 5 Aluminum and consumes 1 Oil per turn
- Pike and Shot costs 10 Iron and consumes 1 Niter per turn
- Supply Convoy costs 5 Iron and consumes 1 Oil per turn
- Courser costs 10 Iron and consumes 1 Horses per turn
- Cuirassier costs 20 Horses and consumes 1 Niter per turn
- Giant Death Robot costs 40 Iron and consumes 2 Uranium per turn