Azuchi Castle

Azuchi Castle (安土城) is the home base of operations for Nobunaga. He resides there to plan his future conquests, and as such it has come to be called "The Devil's Tower". It was praised as a unique and truly beautiful structure by foreign missionaries and natives alike. Historically, a battle was never fought here.

Samurai Warriors
In Samurai Warriors, this location is usually where characters confront Nobunaga in a final confrontation. Battles can be conducted around the castle premises or within its corridors.

For most of the Oda related characters, the castle is captured by Mitsuhide after he fails to kill Nobunaga at Honnoji. The Akechi army then has to try to defend their newly gained castle from the pursuing Oda army. Failing to defend the castle usually leads to Mitsuhide's death. If he barricades it well, he can continue to attack Nobunaga at Yamazaki. In Oichi's story, however, she infiltrates the castle to try to convince her brother to make peace with Nagamasa. She finds Mitsuhide on the top floor, who announces his intentions to betray his lord. With this information, the young couple are able to rush to her brother's rescue at Honnoji. Alternatively, she can also end her brother's life here with Nagamasa. When Nobunaga raids his own castle from Mitsuhide, he can also ride the spear cannon to break down the closed gates.

In another set of scenarios, the Takeda army can come here to invade Nobunaga's realm. Shingen marches from streets near the castle. If he tries to use the cavalry, he could tear the city apart. Intent on stopping his enemies, Nobunaga tells Mitsuhide to burn down the city. Not wanting to put the residents at risk, Shingen or Yukimura can stop him. After their plan is foiled, Mitsuhide rushes to return to his lord to report the Takeda's strength. If Shingen reaches Nobunaga before the youth, he will taunt the enemy commander and convince Mitsuhide to join him. With their new ally, the Takeda guards his escape from the field.

The castle is also the last stage for Okuni and Goemon's lower path scenario. The priestess, still infatuated with Keiji, learns that he is residing here and rushes to his side. Goemon, thinking that she was kidnapped, hurries to rescue her.

For Hideyoshi's story, it serves as his final lower path stage. He mutinies against the Oda after making peace with the Mouri clan.

During the western siege of Odawara Castle in Samurai Warriors 2, Kanbei appears with a group of engineers to speed the building of the makeshift castle. Kanestugu mentions that they previously built Azuchi Castle. An easter egg regarding Azuchi Castle can be found in the mercenary mode in the Xtreme Legends expansion, where the eastern Odawara part is renamed as Azuchi Castle.

Azuchi appears as a survival mode map in Samurai Warriors Chronicles 3. Only the castle interior is present but progressing through the mode far enough without having to retreat will prompt the appearances of Orochi and Kyūbi.

During Spirit of Sanada, Azuchi Castle is introduced as a bustling city that was spared from the conflicts thanks to Nobunaga. When the Sanada submit to the Oda, Lady Muramatsu is sent to Azuchi as a hostage, with Yukimura and Kunoichi acting as her bodyguards.

Shortly after their arrival, Mitsuhide kills Nobunaga and Akechi troops begin pouring into the city, looting the town and killing the civilians and soldiers. As Chacha attempts to leave with Yukimura, they are rescued by Sasuke, and Kunoichi arrives to help locate Lady Muramatsu. The children and shinobi successfully escape the chaos, with Chacha being handed over to Nene, Sasuke returning back to the Tokugawa, and the Sanada children and Kunoichi returning home.

Kessen
Azuchi Castle becomes one of Nobunaga's main bases in Kessen III. Upon the castle's completion, however, Kicho leaves Nobunaga's ranks. He proceeds on his conquests without her until the Incident at Honnoji when they reunite once more. From then on, Azuchi Castle presumably falls into Mitsuhide's possession; Nobunaga reclaims it after his rival's death.

Geten no Hana
Geten no Hana and its sequel is set at Azuchi Castle during Nobunaga's prime. The protagonist is charged with exploring and protecting its various sectors from enemy spies/assassins. The nearby castle town can be seen during select character events.