There are currently 6 types of resources:
- Supplies: gathered from farms in the camp. Use supplies to upgrade buildings.
- Experience points: gained from tents. Use them to upgrade survivors and equipment.
- Gas: generates over time. Needed to send your survivors out on a mission.
- Gold: only found as a rare reward. Used for special upgrades.
- Radios: only found as a rare reward. Used for recruiting survivors.
- Trade Goods: found in the challenges and Outpost. Used in the Trade Good Shop.
You can also find resources as rewards for completing Missions and Challenges, or by driving off walkers from your Camp's perimeter.