Tin is a rare metal Resource crucial for Bronze production in the Bronze age. It is always present on the map but cannot be seen until researching the Smelting Knowledge.
Tin ore is mined from rarely found tin deposits on the ground by the Mining Camp. It can be turned into tin bars (referred to as Tin in game) in the Foundry, using Wood, Charcoal or Coke as fuel.
Tin is used alongside Copper to produce the Bronze alloy. Due to its rarity and the importance of bronze, demand for tin is very high throughout the Bronze age.