Nihon Falcom Corporation (日本ファルコム株式会社) is a Japanese video game developer, best known for their Ys, The Legend of Heroes, and Trails series. The company was founded in March 1981, making them one of the oldest active video game companies. They are credited with pioneering the action role-playing and Japanese role-playing game genres, as well as popularizing the use of personal computers in Japan.

Trails, known as Kiseki (軌跡) in Japan, is a series of science fantasy role-playing video games by Nihon Falcom. It is a part of their larger The Legend of Heroes franchise and began with the release of Trails in the Sky in 2004. Trails features a large cast of characters and consists of interconnected story arcs set in different nations on the continent of Zemuria: Liberl, Crossbell, Erebonia, and Calvard. The series primarily features turn-based combat, with a few spin-offs and more recent entries featuring other styles of gameplay.