Endan Tokugawa Kouryuuki Gorakuin

Endan Tokugawa Kouryuuki Gorakuin is an Adventure game, developed by Studio Angel and published by Zenryuutuu, which was released in Japan in 1988. In the game, the main character occasionally activates a time machine and gets to the year 1582, right after Oda Nobunaga is ambushed and killed. The objective of the game is to make decisions so that the wars in the country are eliminated and stability establishes for 300 years to come.