Concordia has a dry theme but excellent gameplay. You are trading goods around the Mediterranean. Every turn, you simply play one card from your hand and do what it says. The rules are extremely lean. The complexity comes from timing your actions right. You have to plan when to pick your cards back up. There is no direct combat. You compete by claiming the best trade routes before your neighbours do. The board gets tight as everyone expands. A masterclass in elegant game design. It rewards careful efficiency above all else.