The "Trails Series" is a collection of role-playing video games developed by Nihon Falcom. It is known for its deep storytelling, character development, and intricate world-building. The series primarily takes place in the fictional continent of Zemuria, featuring various nations and cultures that players can explore. Each game in the series typically follows a group of protagonists as they embark on quests, solve mysteries, and engage in turn-based combat. The series includes titles like The Legend of Heroes: Trails in the Sky and Trails of Cold Steel, which have garnered a dedicated fanbase for their engaging narratives and strategic gameplay.