Yakuza: Dead Souls[a] is an action-adventure survival horror video game developed and published by Sega for the PlayStation 3.

[4] A sudden zombie outbreak spreads throughout Kamurocho, and is slowly quarantined as the Japan Ground Self-Defense Force is called in to contain the infection.

In the wake of the outbreak, four men seek to help the people of Kamurocho and find the source of the disease: Shun Akiyama, a moneylender attempting to rescue his secretary Hana; Goro Majima, a feared yakuza and construction boss trying to stave off his own infection; Ryuji Goda, who has survived his wounds at the end of Yakuza 2 and is working as a takoyaki chef; and Kazuma Kiryu, an orphanage caretaker and former yakuza forced to return to Kamurocho when his adopted daughter Haruka is kidnapped.

While looking for medicine for Hana, Akiyama sees several massive barricades planted all over Kamurocho by the Japanese Self-Defense Force (SDF) in order to contain the outbreak.

Majima heads to Kamurocho Hills to help escaping citizens and to locate the remaining Tojo Clan members.

At Purgatory, a gambling den, an information broker known as "The Florist" suggests to Daigo and Majima that the Omi Alliance might be responsible for Kamurocho's outbreak, as the initial attack was against the Tojo Clan, and former member Ryuji Goda and top officer Tetsuo Nikaido were seen in Kamurocho before the outbreak started.

A flashback reveals that after Ryuji's expulsion from the Omi Alliance, he started a new life working at a takoyaki stand under the mentorship of a veteran chef called Pops.

After killing the zombified soldiers, Kiryu and Asagi meet Majima, who tells them that survivors are taking refuge in Purgatory.

Along the way, they defeat Hayashi, who reveals that he was made into a mutant after refusing Nikaido and DD's plan to destroy the Tojo Clan before dying.

In a post-credits scene, the police and SDF have a tense standoff with a supposed zombie, but he is revealed to simply be a drunken man.

[13] 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.

[17] A men's fragrance, "Black Dragon", was designed by producer Toshihiro Nagoshi, and appears both in-game and at retailers such as Don Quijote.

[19] Another Kai Razor campaign featured bracelets designed by Nagoshi, Takaya Kuroda, Hidenari Ugaki, and the hostess' performers, as well as a nail clipper.

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.

If Yakuza 3 save data is present, players receive the Sunshine Belly Warmer, while Ryū ga Gotoku Kenzan!

In the western release, players with a Yakuza 3 save receive both the Sunshine Belly Warmer and the Gion Bell, due to Kenzan!

"[32][excessive quote] Retrospectively reviewing Dead Souls for Tom's Guide in light of the series' later popularity and expanded availability, Marshal Honorof criticized it for its "abysmal" shooting controls which they said had poor precision and mobility options, as well as the indefinite respawning of zombie enemies which they believed made the game tedious and unfun.