The game is primarily sold in "game packs", foil-wrapped packs of randomized styrene cards and other game components roughly the same size as a pack of baseball cards or other trading card game packs such as . Each pack includes a randomized combination of two constructible game pieces: ships (including forts and sea monsters), and various crew, treasure and terrain. These game pieces are numbered and collectible, and come in multiple levels of rarity designated by a color-coded triangle on each card's corner - the most common rarities for standard booster pack items are : Common (white for generic crew, red for ships), Uncommon (silver-grey), Rare (yellow), or Super Rare (black). Other rarity designations for non-pack ships include "Special Edition" (green), a one-off Promo (purple), and "Limited Edition" (copper) for tournament prize ships.