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Yu-Gi-Oh! Trading Card Game.
Yu-Gi-Oh! Official Card Game is the version of the Yu-Gi-Oh! card game manufactured by Konami. It is played mainly in Japan and parts of Asia. The OCG is printed in Japanese, Korean, and Chinese. It has previously been printed in English (referred to as Asian-English). Despite being part of the OCG, Asian-English cards have "Yu-Gi-Oh! Trading Card Game" printed on their backings, though with a different logo. In the past there have been 3 different Chinese prints of cards, including two "Blue-Eyes White Dragons" and a "Dark Magician". Starting from Starter Deck 2014 and onward, Chinese cards have once again started to be printed and will now follow a regular release schedule.
TCG cards are not legal in OCG tournaments. Due to Japanese, Asian-English and Korean cards having different backings, if a player chooses to use a mixture, they must use protective sleeves that cover the back of the cards.
OCG tournaments are divided into three classes: Expert, which has no age restriction, Regular: for secondary school students and Challenge, for primary school students.