Brass: Lancashire — first published as Brass — is an economic strategy game that tells the story of competing cotton entrepreneurs in Lancashire during the industrial revolution. You must develop, build, and establish your industries and network so that you can capitalize demand for iron, coal and cotton. The game is played over two halves: the canal phase and the rail phase. To win the game, score the most victory points (VPs), which are counted at the end of each half. VPs are gained from your canals, rails, and established (flipped) industry tiles. Each round, players take turns according to the turn order track, receiving two actions to perform any of the following:

1. Build an industry tile
2. Build a rail or canal
3. Develop an industry
4. Sell cotton
5. Take a loan

At the end of a player's turn, they replace the two cards they played with two more from the deck. Turn order is determined by how much money a player spent on the previous turn, from lowest spent first to highest spent. This turn order mechanism opens some strategic options for players going later in the turn order, allowing for the possibility