The game was first announced in June 2010, during an interview with series producer
Toshihiro Nagoshi in Japanese gaming magazine
Famitsu, during which he mentioned that a new
Ryū ga Gotoku game was in development and that it would star Goro Majima. Majima, as well as the new project, was officially confirmed on July 1, on the official website. In August 2010, a two-page advertisement appeared in
Famitsu, showing Kamurocho in ruins, with the words "The End" over the image. and confirmed on the game's official site on September 9. Video footage of the game was shown for the first time at the
Tokyo Game Show 2010, showing footage of minigames such as darts, fishing, batting and karaoke. It also showed scenes of the town being overrun by zombies and destroyed by a large, black monster and many small creatures. Footage afterwards on the Ryu-Stream channel showed the cabaret girls' actors "shooting" a zombie actor with guns. A series of announcements were then made on the main site, beginning in late July and continuing throughout August, with all four main characters being revealed one by one. Shun Akiyama was then announced on August 4, and Ryuji Goda was then revealed in the final announcement on August 18. Following each character's confirmation, a large poster of him was erected across the east exits of the
Shinjuku branch of
Don Quijote, a shop that features in the game itself as a tie-in, and was replaced by the next character when he was announced.
Tie-ins A recurring theme in the series is
tie-ins, in which real-life businesses, restaurant chains or products are promoted prior to the game's release and within the game itself. A range of
awamori drinks by Okinawa's Seifuku Distillery were licensed. A range of goods, including bracelets and T-shirts, was sold at
Don Quijote, a store chain which has been featured in most games so far. Also sold at Don Quijote was a themed energy drink called "Energy Dragon". Another returning tie-in was a promotion with 777town, in which a Kazuma Kiryu avatar was available for use with the 777town website, and Volcano, a pachinko centre sponsored by the website, was included within the game. A collaboration with a hat brand, Override, was shown in-game; the hat was also available for purchase from Override's website. A men's fragrance, "Black Dragon", was designed by producer Toshihiro Nagoshi, and appears both in-game and at retailers such as Don Quijote. Another promotion with Kai Razor included a Ryū ga Gotoku strap and razor case, and protagonist Kazuma Kiryu is shown shaving with one of their razors in an in-game cutscene. Another Kai Razor campaign featured bracelets designed by Nagoshi,
Takaya Kuroda,
Hidenari Ugaki, and the hostess' performers, as well as a nail clipper. Karaoke Kan, a karaoke venue featured in the game since
Yakuza 3, was included in another promotion. The first 200 customers to visit the special series rooms were awarded one of the three tie-in prizes (80 of each of the T-shirt and Kai Razor prizes were available, while 40 bottles of Black Dragon were given away), and an alternative "Karaoke Kan Version" of the game's commercial was played there, featuring Jun Komori, a model who appears as a masseuse in the game. The game's characters, and a Kamuro-cho gate outfit, are available in the PSP game
Taiko no Tatsujin Portable DX, which features "Machinegun Kiss", a karaoke song from the Yakuza series.
Limited edition In the aftermath of the
2011 Tōhoku earthquake and tsunami, the game's packaging was changed to a "Ganbarō, Nippon!" version with Kiryu and Haruka on the cover; the first pressing included a set of stickers featuring the two. Also included with early preorders was a soundtrack CD, part of the series' recurring
Kamutai preorder bonus series.
Special items Like its PS3 predecessors, some special items are available in the game if a save file from another game in the series is detected. If
Yakuza 3 save data is present, players receive the Sunshine Belly Warmer, while
Ryū ga Gotoku Kenzan! save data grants the Gion Bell () and
Yakuza 4 data awards the Sugar Daddy Amulet (). In the western release, players with a
Yakuza 3 save receive both the Sunshine Belly Warmer and the Gion Bell, due to
Kenzan! not receiving an English-language release. ==Reception==