Plot: Hundred Swords is a real-time strategy video game developed by Smilebit and published by Sega for the Dreamcast. The game was also released on PC, and was compatible with Windows 95, 98, and Me. Wikipedia
Plot: Nanatsu no Hikan: Senritsu no Bishō is a survival horror video game developed and published by Koei for the Sega Dreamcast. It was released on January 20, 2000, in Japan. Plans for a western release were planned but later cancelled. Wikipedia