Question: Which diceless role-playing game is a role-playing game is named for a legendary unbuilt castle in the Bavarian Alps?

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Diceless role-playing game: A diceless role-playing game is a role-playing game which is not based on chance: it does not use randomisers to determine the outcome of events in its role-playing game system.  The style of game is known as "diceless" because most games use dice as their randomiser; some games such as "Castle Falkenstein" use other randomisers such as playing cards as substitutes for dice, and are not considered "diceless".

James Bond 007 (role-playing game): James Bond 007: Role-Playing In Her Majesty's Secret Service is a spy fiction role-playing game based on the James Bond books and films.  The game was designed by Gerard Christopher Klug and published by Victory Games (a branch of Avalon Hill).  The game and its supplements were published from 1983 until 1987, when the license lapsed.  At that time, it was the most popular espionage role-playing game.  "James Bond 007: Role-Playing In Her Majesty's Secret Service" won an Origins Award in 1983 and a Strategists' Club Award as Outstanding Role-Playing Game in 1984.

Fudge (role-playing game system): Fudge is a generic role-playing game system for use in freeform role-playing games.  The name ""FUDGE"" was once an acronym for "Freeform Universal Donated" (later, "Do-it-yourself") "Gaming Engine" and, though the acronym has since been dropped, that phrase remains a good summation of the game's design goals.  "Fudge" has been nominated for an Origins Award for "Best Role-Playing Game System" for the "Deryni Role-Playing Game".

Amber Diceless Roleplaying Game: The Amber Diceless Roleplaying Game is a role-playing game created and written by Erick Wujcik, set in the fictional universe created by author Roger Zelazny for his "Chronicles of Amber".  The game is unusual in that no dice are used in resolving conflicts or player actions; instead a simple diceless system of comparative ability, and narrative description of the action by the players and gamemaster, is used to determine how situations are resolved.

Castle Falkenstein (role-playing game): Castle Falkenstein (abbreviated CF) is a steampunk-themed fantasy role-playing game (RPG) designed by Mike Pondsmith and originally published by R. Talsorian Games.  The game is named for a legendary unbuilt castle in the Bavarian Alps.  Players play the roles of gallant adventurers, facing the intrigue and derring-do of Victorian adventures such as "The Prisoner of Zenda".

List of ski resorts in the German Alps: This is a list of ski resorts in the German Alps.  Because the German part of the Alps lies exclusively in Bavaria, Alpine ski resorts are only found in that state.  The mountains in Upper Bavaria are referred to as the Bavarian Alps; whilst those in the Bavarian province of Swabia are known as the Allgäu Alps.

Alphorn: The alphorn or alpenhorn or alpine horn is a labrophone, consisting of a wooden natural horn of conical bore, having a wooden cup-shaped mouthpiece, used by mountain dwellers in the Swiss Alps, Austrian Alps, Bavarian Alps in Germany, French Alps, and elsewhere.  Similar wooden horns were used for communication in most mountainous regions of Europe, from the Alps to the Carpathians.

Forgotten Realms: Forgotten Realms is a campaign setting for the "Dungeons & Dragons" ("D&D") fantasy role-playing game.  Commonly referred to by players and game designers alike as "The Realms", it was created by game designer Ed Greenwood around 1967 as a setting for his childhood stories.  Several years later, Greenwood brought the setting to the "D&D" game as a series of magazine articles, and the first Realms game products were released in 1987.  Role-playing game products have been produced for the setting ever since, as have various licensed products including sword and sorcery novels, role-playing video game adaptations (including the first massively multiplayer online role-playing game to use graphics), and comic books.  The Forgotten Realms is one of the most popular "D&D" settings, largely due to the success of novels by authors such as R. A. Salvatore and numerous role-playing video games, including "Pool of Radiance" (1988), "Eye of the Beholder" (1991), "Baldur's Gate" (1998), "Icewind Dale" (2000) and "Neverwinter Nights" (2002).

Alpine Foreland: The Alpine Foreland, less commonly called the Bavarian Foreland, Bavarian Plateau or Bavarian Alpine Foreland (German: "Bayerisches Alpenvorland" ), refers to a triangular region of plateau and rolling foothills in Southern Germany, stretching from Lake Constance in the west to beyond Linz on the Danube in the east, with the Bavarian Alps forming its south boundary and the Danube its northern extent.

EverQuest Role-Playing Game: EverQuest Role-Playing Game is a role-playing game based on the "EverQuest" fantasy massively multiplayer online role-playing game (MMORPG).  The game was published by White Wolf under its Sword and Sorcery Studios imprint.  "EverQuest Role-Playing Game" shares many things with the MMORPG, such as setting, available races and classes, monsters, spells, and items.

Supporting paragraphs: Diceless role-playing game Castle Falkenstein (role-playing game)
Answer: Castle Falkenstein