Tributo de Sangre (Tribute of Blood) is an operational game for two players, framed in the colonial conflict that confronted the Spanish Army with the hardened local tribes of the Rif (North of the Moroccan Sultanate) in 1921-22. The game focuses on the peak phase of the conflict, starring the Campaign before and after the Disaster of Annual (1921), which caused the death in combat of thousands of young Spanish soldiers. A tragic episode, which would decisively mark the political and military future of Spain during that same decade and part of the following. TdS is an operational level game, with a "point to point" system guided by cards. It includes 3 short Scenarios plus the entire Campaign Game (22 turns): - Scenario 1: "El Desastre" - Scenario 2: "Evitando el Desastre" - Scenario 3: "Reconquista del Kert" - Campaign Scenario: "Campaña de Annual; 1921-22" A simulation of an irregular and asymmetric warfare, with interesting innovations in mechanics and interactions.