Unlike Zelda, Fire Emblem's strategy base was a challenge to adapt for the team. He was personally surprised that this project hadn't happened before Zelda. Hayashi was pleased by the reactions the project's announcement received from developers in the company and fans around the world. Shortly after Legends's completion, he asked the same team to work on the Fire Emblem project and selected the ones who are Fire Emblem fans to join development. At the time, Hayashi and crew were too engrossed in Zelda to immediately consider it. According to Hayashi, Nintendo executives had approached him to do a Fire Emblem Warriors collaboration during the early development phases of Hyrule Warriors: Legends.
Yosuke Hayashi is the producer, Kouya Usuda is director, and Masahiro Higuchi serves as supervisor on behalf of Intelligent Systems. It was first revealed during the Nintendo Switch presentation on January 12, 2017. Fire Emblem Warriors (ファイアーエムブレム無双, Faiā Emuburemu Musō) is a collaboration title between Omega Force's Warriors IP and Nintendo's Fire Emblem series, making it Koei Tecmo's fourth major collaboration with a Nintendo franchise after Metroid: Other M, Pokémon Conquest and Hyrule Warriors.
