Root Letter is an Adventure, Visual Novel, and Single-player video game developed and published by Kadokawa Games for multiple platforms. The game takes place in Matsue, where the protagonist reaches in search for Fumino Aya, the childhood friend from high school, who had vanished for fifteen years. After the player discovers a letter dedicated to him from her that was never sent. The player embarks on an epic adventure to interrogate the classmates as the player goes in shock when found everything about her friend had been a lie. The game features multiple endings, based on the choices of the player throughout the game. The player plays the game as the adventure visual novel, where the player must figure out what happen to his friend named as Aya, a girl who disappeared after receiving a mysterious letter. The entire gameplay will be divided into two parts such as the simulation part and the adventure part. In Adventure part, the player must interrogate the characters, who knew Aya to find the information about her while in Simulation parts, where the player relives through interaction with Aya. With addictive gameplay, superb mechanics, and smooth controls, Root Letter is the wonderful game to play.