Catan

Catan, originally "The Settlers of Catan," remains the landmark trade-and-build game that introduced modern board gaming to the mainstream, selling over 40 million copies since 1995. Players trade sheep, wheat, and brick to build settlements and roads, often arguing about who's blocking the longest road—capitalism simulation disguised as a family game. With tournaments attracting thousands worldwide and translations into 40 languages, it's the "I have wood for sheep" joke that launched a billion-dollar industry. Its cultural impact and sheer player base remain unmatched.