An aventure game is a type of computer entertainment program or video game, characterized by investigation, exploration, puzzle-solving, interaction with game characters, and a focus on narrative rather than reflex-based challenges. It is important to note that this term is unrelated to adventure films, and adventure novels, and is not indicative of theme or subject matter. The vast majority of adventure games are computer games, though console-based adventure games are not uncommon. Unlike many other game genres, the adventure genre's focus on story allows it to draw heavily from other narrative-based media, such as literature and film. Adventure games encompass a wide variety of literary genres, including fantasy, science fiction, mystery, horror, and comedy. Notable adventure games include Grim Fandango, Zork, King's Quest, The Longest Journey, The Secret of Monkey Island, Indiana Jones and the Fate of Atlantis, Sam & Max Hit the Road, Gabriel Knight, Myst, The Last Express, Snatcher, Policenauts, Shenmue, Shadow of Memories, Ace Attorney and Hotel Dusk. Nearly all adventure games are designed for a single player, since the heavy emphasis on story and character makes multi-player design difficult.