A Game of Thrones: The Card Game (or AGoT, for short) is an out-of-print collectible card game produced by Fantasy Flight Games. It is based on A Song of Ice and Fire, a series of novels written by George R. R. Martin. The first set was Westeros Edition and was released in August 2002. It has since won two Origins Awards. The game's primary designer is Eric Lang, the lead developer is Nate French, and Damon Stone serves as associate designer.

In late 2007, the A Game of Thrones CCG was converted to the A Game of Thrones LCG (Living Card Game), which ended the random booster packs in favor of fixed packs. The game continued until FFG launched a 2nd edition of this LCG in 2015.

In the game, players assume the leadership of one of the great houses of Westeros vying for control of King's Landing and the Iron Throne. To accomplish this, players launch military attacks against their opponents, undermine their opponents’ plans with intrigues of their own, and make power plays to win the support of the realm.

Factions Each house represents one of the main factions involved in the struggle for the Iron Throne emulated by the AGoT LCG. Each house provides different strengths and weaknesses, allowing for various play styles to interact within the same game. Certain cards are restricted to one or two houses, giving each house a unique flavor. Currently, there are eight playable factions in the AGoT LCG. Each is identified by a shield bearing the arms of the house, located in the upper right corner of the card.

Great houses House Stark, the honorable rulers of the cold North. The Stark shield is a grey direwolf on an ice-white field. Prominent Stark characters include Lord Eddard Stark and his wife Catelyn, their son Robb, as well as Maester Luwin, Ser Rodrik Cassel, and Brynden "The Blackfish" Tully. Common game mechanics include direct kill, deck searching, and improved defense. Many Stark effects are themed around military challenges. House Lannister, the rich and treacherous residents of Casterly Rock. The Lannister shield is a gold lion on a crimson field. Prominent Lannister characters include Jaime, Cersei, and Tyrion Lannister, as well as Ser Gregor Clegane, Ser Addam Marbrand, and Grand Maester Pycelle. Common game mechanics include card draw, kneeling effects, and trait manipulation. Many Lannister effects are themed around intrigue challenges. House Baratheon, the royal blood of King Robert, rulers of Dragonstone and Storm's End. The Baratheon shield is a black crowned stag on a gold field. Prominent Baratheon characters include Robert, his brothers Stannis and Renly, as well as Melisandre, Ser Davos Seaworth, and the Loras Tyrell, the Knight of Flowers. Common game mechanics include power manipulation, standing effects, and retrieval of cards from the dead and discard piles. Many House Baratheon effects are themed around power challenges. House Greyjoy, the rulers of the Iron Islands and the Ironborn raiders who prey on the rest of Westeros. The Greyjoy shield is a gold kraken on a black field. Prominent Greyjoy characters include Theon, Asha, and their father Balon Greyjoy, as well Balon's brothers Euron Crow's Eye and Aeron Damphair. Common game mechanics include location control, the ability to save characters, event cancels, and boosting the strength of attacking characters. Many house Greyjoy effects are themed around winning unopposed challenges. House Targaryen, the exiled descendants of Aegon the Conqueror and their exotic followers. The Targaryen shield is a red on black, three-headed dragon representing Aegon and his sisters. Prominent Targaryen characters include Daenerys Targaryen and her three dragons, Khal Drogo, Ser Jorah Mormont, and Grey Worm. Common game mechanics include attachment manipulation, strength reducers and kill effects on strength 0 characters (frequently referred to as "burn" effects), and playing characters outside of the marshalling phase. Many Targaryen effects are themed around winning or losing challenges by 4 or more strength. House Martell, rulers of the desert realm of Dorne, the southernmost region of Westeros. The Martell shield is a red sun pierced by a golden spear, on an orange field. Prominent Martell characters include Doran Martell, Oberyn Martell the Red Viper, his daughters the Sand Snakes, and his niece Arianne Martell. Common game mechanics include icon manipulation, discard effects, stealth, and card draw. Many Martell effects are themed around losing challenges, leading to such effects being referred to as "revenge" effects.

Other factions Some great houses featured in A Song of Ice and Fire are not represented as individual Houses in the AGoT LCG, but still appear in the game. House Tully is present in the game as a subset of their allies, House Stark. House Lannister and House Baratheon both feature numerous House Tyrell cards, and several significant House Tyrell characters were featured as promotional cards. House Tyrell also features prominently in the A House of Thorns expansion, as does House Bolton to a smaller extent. Other lesser houses also appear in the game, in service to the Great Houses to which they are sworn. Several House Frey cards also make an appearance, primarily as neutral cards. House Arryn is a prominent theme in A House of Talons.

In addition to the noble houses, the AGoT LCG also features many other factions present in A Song of Ice and Fire as part of a particular theme. Example: The Wildlings are featured in Winter Block, while the Asshai'i have been a sub theme over many expansions.

Cards Each player supplies his or her own deck to play the game. A deck consists of a House Card or Alliance to represent the player's faction, an optional Agenda that modifies his faction, a plot deck that consists of exactly seven Plot cards, and then a main draw deck of at least 60 cards consisting of Characters, Attachments, Locations, and Events.

House cards Each House card represents one of the main factions involved in the War of the Five Kings. Each House provides different strengths and weaknesses, allowing for various playstyles to interact within the same game. The House card selected will often restrict cards allowed in the remainder of the deck, by limiting cards that are marked as being allowed solely for another House.

Characters, Locations, and Attachments often have a House affiliation, and often are used in decks running a matching House card. Some cards have no House affiliation, and such neutral cards may be used freely in any deck. Cards with House affiliations other than the chosen House card may be used, providing the card itself has no restriction, but require an extra expenditure of resources to bring them into play.

Agenda cards (optional) Introduced in Valyrian Block, any deck using a House card (but not an Alliance card) may use one Agenda card. Agenda cards either modify the rules for building the player's deck, or grant an in-game advantage, typically at the cost of some other disadvantage such as requiring extra power to win, reduced card draw, or limiting claimed power.

Plot cards Plot cards are generally regarded as the defining feature of A Game of Thrones: The Card Game. Unlike the shuffled and randomly drawn resource deck, at the beginning of each round, each player chooses a new plot card to be revealed, which will have an effect on the round to be played, allowing for a strategic element to an otherwise random game.

Plot cards indicate the base amount of gold available for the player to use to bring new cards into play during his Marshalling phase (indicated by a number within a gold coin), a base initiative value to determine the order of play for the round (indicated by a number within a diamond), a base claim value to determine the scope of the effect that player winning a challenge (indicated by a number in a silver disk), and a text box detailing any other effects or restrictions on the plot card, including any traits that it might have.

Most plot cards are designed with built-in trade-offs, sacrificing high claim for low income, or some other game mechanic drawback.

Character cards Character cards represent the unique characters from the A Song of Ice and Fire novels, such as Eddard Stark, as well as generic individuals and massed groupings (such as armies) that can be found there. Generally, characters are the main focus of a deck as they are the principle card type used to participate in challenges, and thus collect the power tokens necessary to win.

Attributes of a Character card consist of a gold cost (generally represented by a number overlaid on a gold coin in the upper left corner), a name across the top that may be preceded by a black flag if the character is unique and/or an infinity symbol if the character is endless, a House affiliation (represented by one or more House shields in the upper right corner, although neutral characters will have a blank shield), artwork depicting the character in the top half of the card, a strength value (represented by a number on a stylized tapestry or a nondescript shield in the middle of the left side), zero to three challenge icons (a red axe represents Military, a green eye represents Intrigue, and a blue crown represents Power) arrayed in the bottom half of the left side, and a text box in the lower half of the card.

Within the textbox may be traits, keywords, other game effects or icons, and flavour text from the novels. Traits are bold and italicized words at the top of the textbox, and usually represent roles or groups within the world of A Song of Ice and Fire, such as Lords or Dothraki. They have no game function themselves, but instead are used to group characters together in order for other game effects to be used by or against varied groups of characters. Keywords are game mechanics defined in the rules that affect that character, such as No Attachments, which prevents any attachments from being placed on that character.

Attachment cards Attachments are cards that are used exclusively to modify other cards. An attachment may not be in play unless it is attached to the proper type of card, typically a character card unless the attachment itself says otherwise.

Attributes of an Attachment card consist of a gold cost (generally represented by a number overlaid on a gold coin in the upper left corner), a name across the top that may be proceeded by a black flag if the attachment is unique and/or an infinity symbol if the attachment is endless, a House affiliation (represented by one or more House shields in the upper right corner, although neutral attachments will have no shield), artwork depicting the attachment in the top half of the card, and a text box in the lower half of the card. Throughout the Winter block, some cards were printed with a black crow icon in the bottom left corner to indicate the attachment is Doomed. It is unknown if such attachments will appear again.

Within the textbox may be traits, keywords, other game effects or icons, and flavour text from the novels. Traits are bold and italicized words at the top of the textbox, and usually represent types of enhancements, such as skills or titles. They have no game function themselves, but instead are used to group attachments together in order for other game effects to be used by or against varied groups of attachments. Keywords are game mechanics defined in the rules that affect that attachment such as Setup, which allows the attachment to be played at the beginning of the game unlike normal attachments.

Occasionally, game effects can cause cards to become face-down attachments attached to specific other cards. These function the same as normal attachments, except they are treated as having no names, no text, no gold costs, no House affiliations, and are discarded if they are ever forced to leave play.

Location cards