Tengai, known as Sengoku Blade in Japan, is a horizontally scrolling shoot 'em up video game released for arcade machines in 1996 by Psikyo as a sequel to their 1993 shooter Sengoku Ace. A home console version was also released for the Sega Saturn. The game was ported years later to the PlayStation 2, and again for iOS and Android devices and the Nintendo Switch, Windows, PlayStation 4 and Xbox One. The game is set in a historical fantasy version of the Sengoku period of Japanese history, featuring demons, magic and steam-powered robotics.