Codenames Duet XXLThe double sized version is ready to be enjoyed by larger groups. It provides easier visibility with all the fun of the original. While the original card size in Codenames was 2. 6 1. 7, Codenames XXL contains cards sized 4. 7 2. 8. Codenames Duet keeps the basic elements of Codenames give one word clues to try to get someone to identify your agents among those on the table but now you're working together as a team to find all of your agents.