Uncharted Seas. Game Cards add an interesting and exciting extension to your games of Uncharted Seas. Each race has a 26-card deck available (13 unique cards and 13 common) which can improve combat, annoy your opponent, ruin your opponent's day, blow models up, make things go faster, add magic and much more. Although not something you have to use, we heartily encourage the use of our Game Cards to add a Fog of War to your battles.