In Japan, there are reportedly 20+ titles in development for the Nintendo Switch which use Unreal Engine. Titles include a Shin Megami Tensei title and the Kickstarter-backed Bloodstained game.
Over the years, Unreal Engine has become a popular game engine of choice for Japanese game studios.
Source: http://gematsu.com/2017/04/20-unreal-engine-4-games-development-switch-japan