Catan is the game that introduced many of us to the hobby. You roll dice to gather resources and build roads across the island. Trading with other players is the core of the experience. You will spend a lot of time arguing over the price of brick. The dice rolls mean that luck plays a massive role. Sometimes the numbers you need just refuse to show up. It gets a bit chaotic towards the end when the board fills up. It is easy to teach and remains a solid choice when you have casual players over for a few drinks.