In 1950s Vienna, a city rife with intrigue and secrets, you are the head of a clandestine organization. Your mission: gather critical information on industry, politics, and the military while outsmarting rival players. Every decision you make determines whether you become the ultimate master of secrets.

To succeed, you'll send agents throughout the city to gain control of key locations and meet with informants to acquire valuables. Each agent possesses unique skills, and strategic placement is crucial for gaining an edge. As you explore Vienna's hidden opportunities and challenges, you can enhance your actions by playing cards. These cards allow you to collect bribes, unlock secret knowledge, or strengthen your moves. Perfect timing is essential, as the right card at the right time can completely turn the game in your favor.

Vienna offers a captivating gaming experience for 2–4 players aged 14 and up, perfectly balancing accessibility with strategic depth. As the game progresses, rivalries intensify, and the tension rises with each round. Ultimately, the player who secures the most secrets and scores the most points wins, claiming their place as the true master of espionage in post-war Vienna. Can you rise to the challenge and prove your dominance in the city of secrets?