Caravan (game)

Caravan is a card game designed by Obsidian Entertainment specifically for Fallout: New Vegas. While traveling throughout the Mojave Wasteland, you will encounter NPCs who will be available to play a game of Caravan. Ringo in Goodsprings will give the Courier a basic deck and the rulebook. A Caravan deck must consist of at least 30 cards, chosen by the player before starting the game. If the player does not have the correct amount, any attempt to play with NPCs will result in a message informing them of this fact.

Caravan can be an effective way of making money in the early parts of New Vegas, particularly when playing against merchants who (if anted properly) can place as much as 81.5% of their available currency on a particular hand of Caravan. However, most Caravan-playing merchants are subject to a limit on the total number of times they will play against the Courier.

Obtaining a deck and additional cards
A free 54 card starter deck and game instructions can be received from Ringo in Goodsprings. This deck is composed of all 54 cards available from The Tops casino. Additional cards can be obtained from various merchants and corpses across the Mojave wasteland, or by beating Festus at Lucky Horseshoes.

Adding cards to your card pool is currently broken if you do not have patch 1.2.0.31x, there is a work around in the Bugs section (patched on the PC version).

Bidding
Prior to the actual game, your opponent will place a bid. The player can then either match or raise the bid. NPCs will not match every bid, only raising to about 50% of their initial bid. It is possible to bid more than your opponent will, but not vice versa.

Building A Deck
Caravan decks are composed of at least 30 cards from one or more traditional playing card sets. The deck may have any number of cards of any type, although it cannot have duplicate cards from the same set. For example, a King of Spades with The Tops on the reverse and a King of Spades with Gomorrah on the reverse is acceptable, but more than one King of Spades from The Tops deck would be illegal. Any duplicate cards purchased by the player are automatically filtered out of the selection process.

Using the in-game interface to build a custom deck
Prior to beginning the game, the player is presented with the "deck creation interface." This interface consists of two rows of cards, both representing every card in the deck. The visible cards in the top row represent the playable deck, while the bottom row are the unused cards.

A deck is created by moving cards from the bottom row to the top row using the Add button. Cards can also be removed using the Remove button. The "Randomize Deck" button will randomly change the visible cards in the top and bottom rows, creating a new caravan deck for you each time from the available cards in your total card pool. Once the player is finished creating their deck, they can move on to the game. The finished deck will be saved and cannot be edited until the next hand of Caravan is played.

Rules
Caravan is played with two players building three opposing caravans (or "bids") of numbered cards. The goal is to outbid the opponent with the highest value of numbered cards without being too light (under 21) or overburdened (over 26).

The game begins with each player taking eight cards from their deck and placing either one numerical card or Ace on each of their caravans. A player may not discard during this initial round. (This is currently bugged, see Bugs.) Once both players have started their three bids, each player may do one of the following on their turn:
 * 1) Play one card and draw a new card from their deck into their hand.
 * 2) Discard one card from their hand and draw a new card from their deck.
 * 3) Disband one of their three caravans by removing all cards from that caravan.

After the initial card is played, the following card determines the direction of the caravan, either ascending or descending numerically. All subsequent cards must continue that numerical direction and/or match the suit of the previous card. Playing a same-suit card will change the direction of the caravan, if applicable. Cards of the same numerical value cannot be played in sequence, regardless of suit. Face cards and Jokers can be attached to an Ace or numeric card in a caravan (including your opponents') and affect them in various ways.

Card Values
Effects change based on whether it's an Ace or a number card (see below). They have no effect on face cards. Multiple Jokers may be played on the same card. Jokers played on Aces remove all non-face cards of the Ace's suit from the table. A Joker played on an Ace of Spades, for example, removes the 2 through the 10 of Spades. This has no effect on cards whose suit has been changed by a Queen, nor on any cards played after the Joker. Jokers played on these cards remove all other cards of this value from the table. For example, a Joker played on a 4 of Hearts removes all 4s (other than the card the Joker is played upon) from the table. This only affects cards played before the Joker. Removes that card from the table, along with any face cards (Jokers, Queens, or Kings) attached to it. Changes the suit of the card it's played on and reverses the direction of the caravan if played on the lead card. For example, playing a Queen of Hearts on the lead card in a 5, 7, 9 caravan will change the 9 to Hearts and make the direction descending. Multiple Queens may be played on the same card. Doubles the value of the number card it's played on. A King played on a 4 adds 4 to that caravan. Multiple Kings may be played on the same card for multiplicative effects; thus, a second King will re-double the value resulting from the first King, so 4 x 2 = 8 then 8 x 2 = 16.
 * Ace: Value of 1.
 * Numbered Cards (2-10): Listed value.
 * Joker: Played against Ace; 2-10.
 * Ace:
 * Numbered Cards (2-10):
 * Jack: Played against Ace; 2-10.
 * Queen: Played against Ace; 2-10.
 * King: Played against Ace; 2-10.

Winning
A player's caravan is considered sold when the value of its cards is over 20 and under 27. The opponent may still outbid by increasing the value of their opposing pile while staying within the 21-26 range. The game ends when each of the competing caravans is sold to either the opponent or the player. In the event of a tie between any two matched caravans, the game continues until one side has a better bid. The player with two or more sales on their side at the end of the game wins the pot. If either player runs out of cards to discard before a winning condition is met, the player will not be able to discard and will be declared the loser regardless of how many winning caravans they have.

NPCs who play Caravan

 * [1] Merchants who play Caravan will use one quarter of their currency as starting bid. Spending caps with them increases the amount they hold and the amount they bet, and vice versa.
 * [2] Certain merchants have a limit on the total number of times they will play Caravan against the player. This limit is absolute and does not "reset" at any point during the game.

Both Klamath Bob and Melissa were at one point intended to be Caravan players. The dialog options which would allow this have been completely removed in both cases, but their Caravan decks remain in the game's resources.

Additionally, Poindexter appears to have been intended to be a Caravan player. In this case the dialog option remains, but the associated dialog script, caravan deck, and necessary faction assignment are not present.

Bugs

 * New cards are not automatically added to the player's deck, either when picked up or when purchased
 * This issue has been resolved with the release of Patch 1.2.0.285.
 * This issue has been resolved with the release of Patch 1.2.0.31x.
 * If the Dead Money add-on is installed, cards which are picked up from the world will not be automatically added to the Courier's Caravan deck.
 * A third-party bugfix which addresses this issue can be found here: New Vegas Nexus
 * Playing with Dale Barton (or any no-game-limit NPC) when he holds 59804 caps will result in you winning up to 52029 caps and Dale Barton will fall back to 59804. This action is repeatable. Also, the game may crash when he holds more than 1000000 caps.
 * You can put up to 10,000,000 caps and 5,000,000 NCR and Legion money into his inventory without crashing. (Confirmed Xbox 360)
 * Confirmed on Johnson Nash after reverse-pickpocketing between 37,000 (roughly) and 65,537 (2^16+1) caps into his inventory. Crashes happened at higher values, exact cutoff unknown.
 * Process also confirmed on No-Bark. This suggests that this exploit works with all no-game-limit NPCs. 65,536 (2^16) caps may be the upper limit cutoff for an NPC, which would cause an integer overflow if increased any further.
 * Ringo will continue to bet the same amount on consecutive games at 14,088 caps, and the game repeatedly crashes if he loses while holding more than 15,000 caps.
 * Cards are only viewable in the default "items" category while placing them into containers, rather than the expected "misc" category.
 * If any of the cards are duplicates of cards you already found before, they will not appear in the bottom half of your deck creation interface. This explains why sometimes new cards that you've bought/found seem to disappear when you add them to your card pool.
 * The game freezes when buying a large number of cards. A possible work around is to first put all playing cards you already have in the backpack of a companion. Then buy the cards you want of a vendor and finally retrieve all already owned cards from your followers inventory. Work around is to only buy around 3 items at a time. (The glitch is acctually when you buy 2 of the same card. Any other cards are added normally (you can hear the ticking noise), but when it gets to the duplicate card the game freezes and you have to reboot.)
 * It is also difficult to select cards when editing your deck, because the card that's highlighted is often not the card you're selecting.
 * Though the rules state no discarding may occur during the initial round, it is nonetheless possible to do so anyway. If you do, your opponent does not get a turn and you get to go again. The NPC will also use this bug to their advantage.
 * After the game ends:
 * when it says to press any button to continue pressing start and then hitting start again will cause the game to become unresponsive yet party chat still works.
 * the button you hit to continue will sometimes lag over. (Pressing (O) to exit will sometimes cause the pipboy to open and pressing (X) will sometimes cause you to talk to the person you just finished playing with).
 * Confirmed on unpatched Xbox version of the game, only encountered at Crimson Caravan merchant as well as Cliff Briscoe.
 * It is not possible to discard cards from your hand once your main deck is empty. Your opponent will still be able to do so once their deck is gone.
 * In-game the cards in the deck will all have "The Tops" background. However, when they reach your hand the front may look different (indicating that it is not a "The Tops" card). The backs are correct when building the deck but not correct when playing the game.
 * This issue has been resolved with the latest patch.
 * Upon winning, the player gets the amount of caps in the pot added to their cap total, though the in game message only reports adding half the pot. This is only when the player wins, if the NPC wins the caps are removed and added properly from both.
 * "Caravan Master" achievement unlocks with the perk of the same name after winning 35 games, not 30. First five wins count toward the "Know When to Fold Them" achievements, only the next 30 toward the achievement. (FIXED) recent editions of New Vegas for Xbox360 have the first 3 games apply for the first challenge, the next 27 (30 total) apply to the 2nd "Know When to Fold Them" challenge.
 * NPCs will never use a face card on one of your caravan bids, instead they will place the card on their own opposing bid.
 * When putting a card onto any pile, the green validation card will show upside down
 * When dropped, Caravan cards all appear to be ace cards, No matter which card they really are.
 * It is only possible to discard cards.
 * A bug may occur where the NPC will not bid any caps even if you wager caps. If this happens, you may lose your wager if you lose and won't win anything if you win.
 * Some caravan card games may not load up a screen, but rather load up the options to choose cards. The screen will remain with you looking at your opponent.
 * When Drawing or discarding, some cards may change to a different card (ex. 7 to a 10) for the duration of the animation and then change back.
 * If you use the three cards 10,9 and 7 you wont win even though you have 26 on every track.

Behind the scenes
The achievement/trophy name Know When to Fold Them is a reference to the song The Gambler by Kenny Rogers.

Караван