Imagine you are one of the master stonemasons summoned by King Pedro V to pave the Rossio Square in Lisbon. Your goal? To create those iconic black and white Portuguese pavement patterns. But it's not just about laying stones; you'll need strategy, timing, and the help of assistant cards to gather money and points.

The game dynamics revolve around a modular board that is filled cooperatively, though the competition is fierce. On your turn, you recruit cards to your individual player board. This is where the main dilemma lies: if you play a card face-up, you pay its cost, but it scores points every time its pattern appears on the square. If you play it face-down, it costs nothing and grants you a coin, but you forfeit the scoring potential.

Next comes the building phase. You place pavement tiles following adjacency rules. If you manage to place a tile next to a similar one, you can trigger bonus placements. Money is tight, so every single coin is crucial for recruiting those high-value cards.

The real challenge is timing. Recruiting a pattern card too early means there aren't enough tiles on the square to score. Waiting too long might mean the space is gone and the opportunity is lost. It's a balancing act: building too many tiles helps your opponents, but building too few leaves you broke for the next turn. With simple rules but high player interaction, Rossio turns urban paving into a tactical duel where visual perception and hand management are the keys to victory.