Power Grid is all about math and money. You bid on power plants and buy resources to supply cities with electricity. The market constantly fluctuates based on supply and demand. If everyone buys coal, coal becomes expensive. The auctions get highly competitive. You spend a lot of time calculating your budget. It demands your full attention. The catch-up mechanics keep the game tight until the very last turn. You can easily block someone out of the final victory. A harsh economic puzzle that satisfies those who love numbers.