Irish Gauge

On each player's turn, they can either place a share of one of five companies up for auction, build track (represented by cubes) in one of these five companies, upgrade a town to a city, or call for dividends. The dividends are paid out to shareholders of certain railroads based on how many cities/towns they connect to and how many shares of this company have been issued. The game ends when a certain condition is met at the end of a player's turn, and the player with the highest sum of money and