Dark Duel Stories[a] is a 2000 digital collectible card game of the Yu-Gi-Oh!

universe for the Game Boy Color developed and published by Konami.

A usual game consists of players using their assembled decks of cards to reduce their opponent's 8000 life points to zero, but a duel can also be won by forcing the player's opponent to run out of cards in their deck and having them unable to draw a card at the start of their turn, or by having all five pieces of Exodia in their hand.

Dark Duel Stories also allows them to defeat monsters based on card type or element weaknesses; here, the different between ATK or DEF points is not taken into account and the card with the weakness is instantly destroyed.

If the deck is over/under 40 cards or over the cost limit, the player will not be able to duel until the error is fixed.

Certain cards may also not be included in their Deck unless they have the appropriate Duelist Level, which is also increased by winning duels.

Note that when using such a password, the card's effects will most likely change from the actual TCG card, due to the way Dark Duel Stories plays (using the standard Duel Monsters ruleset).

The game was originally scheduled to release in North America in November 2001.