303 Squadron is a 1-4 cooperative game based on the history of the Polish Air Unit of the same name, which participated in the Battle of Britain during WW2. Taking the role of Polish pilots of this period, players will try to stop the German raids on the UK. The mechanics are based on the combination of a distinctive combat card system and specially designed dice. Each card, holding extreme importance, provides various possibilities at any time of the game; during a movement phase as a boost, during a dogfight in the combat phase, as a support action or as a defense against German fighters counter strikes.