Information on the Yu-Gi-Oh! Wikia revolves around two facets of the Yu-Gi-Oh! universe: the show and the card game. Characters, episodes and screen captures taken from the many Yu-Gi-Oh! animated series dominate the wikia's pages. Card galleries, sets, card rulings and a card database take up many of the wikia's 75,000 pages.
As of July 2014, the wikia features information about five anime series: the original show, "Yu-Gi-Oh! GX," and the "Yu-Gi-Oh! 5D's," "Yu-Gi-Oh! Zexal" and "Yu-Gi-Oh! ARC-V" spin-offs. Fans of the show outside Japan get information on series that have not been translated into English, such as the fourth spin-off, "Yu-Gi-Oh! ARC-V." In general, Japanese episodes air nine months to a year before English air dates. Enthusiasts often post information on the wikia in English based on subtitled episodes, as opposed to English-dubbed versions.
Perhaps the most useful part of the Yu-Gi-Oh! Wikia is the card database that includes useful information for Yu-Gi-Oh! card game players, such as card rulings, trivia and explanations about the rules for and uses of each card, provided by experienced fans. The card database is sortable by card level and card type as well as by the number of attack points each card contains.