Yo-kai Sangokushi was supposedly developed by a team of fans of the
Yo-kai Watch series. Prior to when the development of
Yo-kai Sangokushi began,
Akihiro Hino, the CEO of Level-5, and Yoichi Erikawa, the founder of Koei Tecmo, had a "close relationship as game creators" and had talked about working together at some point. At an unknown time, Erikawa had sent a letter to Hino praising the
Yo-kai Watch series and its ability to expand into multimedia. Hino, who had learned Japanese history through
Romance of the Three Kingdoms and ''
Nobunaga's Ambition'', respected Erikasawa, and called him his history teacher. Due to the two's respect for each other, the collaboration was "realized." The announcement was in commemoration of the 30th anniversary of the
Romance of the Three Kingdoms series. A playable demo of the game was available during the World Hobby Fair Winter 2016. On January 14, 2016,
CoroCoro Comics, the serializers of the
Yo-kai Watch manga, published an announcement for the game on
YouTube. A debut trailer for the game was published by Level-5 on February 14, 2016. For a limited time in 2016, Lawson HMV Entertainment released an official
pencil board featuring the main characters from
Yo-kai Sangokushi. A 12-page volume focused on
Yo-kai Sangokushi was included in the April 14, 2016, issue of
Famitsu (which released on March 31, 2016) to commemorate the game's release. The volume included an interview with Hino and Erikawa. A limited-time event was held in
Yo-kai Watch: Wibble Wobble in Japan to promote
Yo-kai Sangokushi's release. The event saw players picking one out of three teams and attempting to collect jewels for their chosen team, with the team with the most jewels winning.
Yo-kai Sangokushi released in Japan on April 2, 2016. The retail version of the game included a physical
Yo-kai Medal of
Komasan Sun Ce. A figure strap of Komasan Sun Ce was also included in first-print copies of the game. If the player had downloaded the game digitally, they would receive the character Buchinyan Cho Un.
Soundtrack The game's ending theme, "Bling Bling Great Whirlwind" (ブリンブリン大旋風), was composed by Maiko, Gerapper, and ZZROCK of King Cream Soda. The song is an uptempo version of the main theme from
Romance of the Three Kingdoms mixed with rap. The "bling"s in the title is hip-hop slang for glaring, which Gerapper, the namer of the song, stated was used due to "the glare of the warlord's way" in the
Romance of the Three Kingdoms series. == Reception and sales ==