1、解压缩
2、复制Update文件夹下的升级补丁或DLC到游戏目录覆盖
3、运行游戏

需要官方Steam正版原始版本才可使用：点击下载

集成游戏发售至今全部升级档 并包含以下7个DLC:
NOBUNAGA'S AMBITION: Souzou SR - "RTK13" 30 Face CG Set   
NOBUNAGA'S AMBITION: Souzou SR - GAMECITY GCコインシリアル   
NOBUNAGA'S AMBITION: Souzou SR - GAMECITYオンラインユーザー登録シリアル
NOBUNAGA'S AMBITION: Souzou SR - “Nobunaga's Ambition Day” memorial set (2016)
NOBUNAGA'S AMBITION: Souzou SR - "Miura Anjin" Bushou Data
NOBUNAGA'S AMBITION: Souzou SR - "Oyamada Shigemasa","Muramatsu Dono" Bushou Data
NOBUNAGA'S AMBITION: Souzou SR - "Mego Hime" Bushou Data

By 官方Steam正版分流