paragraph_text: Castle Wolfenstein is a 2D adventure game released in 1981 for the Apple II, written by Silas Warner. One of the pioneers of the stealth game genre, it is a game of avoiding detection and managing limited resources while trying to escape from a Nazi stronghold. Combat was allowed, but bullets were precious, and non-violent options were often safer, such as pulling a gun on a guard and frisking him while his hands were raised. A sequel, Beyond Castle Wolfenstein, was published in 1984.

paragraph_text: The Riddle of the Third Mile is a crime novel by Colin Dexter, the sixth novel in Inspector Morse series.

paragraph_text: The Château de Lichtenberg is a castle built on a singular prominence in the northern Vosges at the end of the village of Lichtenberg, Bas-Rhin department in Alsace in north-eastern France. The castle was first mentioned in 1206 and is most well known as the home of the Counts of Hanau-Lichtenberg. It was left in ruins in 1870 after bombardment by Württemberg troops during the Franco-Prussian War, but was restored in the 1990s and is open to the public.

paragraph_text: The palace, like Windsor Castle, is owned by the Crown Estate. It is not the monarch's personal property, unlike Sandringham House and Balmoral Castle. Many of the contents from Buckingham Palace, Windsor Castle, Kensington Palace, and St James's Palace are part of the Royal Collection, held in trust by the Sovereign; they can, on occasion, be viewed by the public at the Queen's Gallery, near the Royal Mews. Unlike the palace and the castle, the purpose-built gallery is open continually and displays a changing selection of items from the collection. It occupies the site of the chapel destroyed by an air raid in World War II. The palace's state rooms have been open to the public during August and September and on selected dates throughout the year since 1993. The money raised in entry fees was originally put towards the rebuilding of Windsor Castle after the 1992 fire devastated many of its state rooms. 476,000 people visited the palace in the 2014–15 financial year.

paragraph_text: Pelișor Castle (Romanian: "Castelul Pelișor") is a castle in Sinaia, Romania, part of the same complex as the larger castle of Peleș.

paragraph_text: The BR Standard Class 4 2-6-0 is a class of steam locomotive designed by Robert Riddles for British Railways (BR). 115 locomotives were built to this standard.

paragraph_text: The original Little House books were a series of eight autobiographical children's novels written by Laura Ingalls Wilder and published by Harper & Brothers from 1932 to 1943. The eighth book, These Happy Golden Years, featured Laura Ingalls at ages 15 to 18 and was originally published with one page at the end containing the note, ``The end of the Little House books. ''The ninth and last novel written by Wilder, The First Four Years was published posthumously and unfinished in 1971. Although her intentions are unknown, it is commonly considered part of the Little House series and is included in the 9 - volume paperback box set Little House, Big Adventure (Harper Trophy, May 1994).

paragraph_text: Death Comes as the End is a historical mystery novel by Agatha Christie, first published in the US by Dodd, Mead and Company in October 1944 and in the UK by the Collins Crime Club in March of the following year. The US Edition retailed at $2.00 and the UK edition at seven shillings and sixpence (7/6).

paragraph_text: Fyodor Panayev was born in 1856 in the settlement of Yug, in the Perm Governorate of the Russian Empire. He graduated from Perm Uyezd College and worked as a teacher in Shadrinsk and in Solikamsk Parish College (1878—1891). In Solikamsk he studied the local folklore and published several papers in "Proceedings of Ural Society of natural science fans" (). In 1883, his book "The anthology of proverbs, sayings, riddles, songs and epics, collected in Solikamsk Uyezd" () was published in Yekaterinburg. Since 1891 Panayev lived in Perm.

paragraph_text: Château Gaillard ("Strong Castle") is a ruined medieval castle, located above the commune of Les Andelys overlooking the River Seine, in the Eure "département" of Normandy, France. It is located some north-west of Paris and from Rouen. Construction began in 1196 under the auspices of Richard the Lionheart, who was simultaneously King of England and feudal Duke of Normandy. The castle was expensive to build, but the majority of the work was done in an unusually short period of time. It took just two years and, at the same time, the town of Petit Andely was constructed. Château Gaillard has a complex and advanced design, and uses early principles of concentric fortification; it was also one of the earliest European castles to use machicolations. The castle consists of three enclosures separated by dry moats, with a keep in the inner enclosure.

paragraph_text: Dundurn Castle is a historic neoclassical mansion on York Boulevard in Hamilton, Ontario, Canada. The house took three years and $175,000 to build, and was completed in 1835.

paragraph_text: Lord Voldemort / Tom Riddle Harry Potter character Ralph Fiennes as Lord Voldemort in Harry Potter and the Deathly Hallows -- Part 1. First appearance Harry Potter and the Philosopher's Stone Last appearance Harry Potter and the Deathly Hallows Created by J.K. Rowling Portrayed by Ralph Fiennes, as the Dark Lord finally resurrected from HP4 to the end of the film series in HP7 -- Part 2 Frank Dillane, as a fifteen - year - old in HP6 Hero Fiennes - Tiffin, as an eleven - year - old in HP6 Christian Coulson, as a sixteen - year - old in HP2 Ian Hart, voice in HP1 Richard Bremmer, non-faced in HP1 Eddie Izzard, The Lego Batman Movie House Slytherin

paragraph_text: Brandis Castle or Maienfeld Castle is a castle in the municipality of Maienfeld of the Canton of Graubünden in Switzerland. It is a Swiss heritage site of national significance.

paragraph_text: The Oklahoma Woman is a 1956 film directed by Roger Corman, involving the return of Steve Ward (Richard Denning) to his hometown to claim his inheritance. Ward ends up getting involved in a local election and the ambitions of saloon owner, Marie "Oklahoma" Saunders (Peggie Castle).

paragraph_text: Rosenborg Castle () is a renaissance castle located in Copenhagen, Denmark. The castle was originally built as a country summerhouse in 1606 and is an example of Christian IV's many architectural projects. It was built in the Dutch Renaissance style, typical of Danish buildings during this period, and has been expanded several times, finally evolving into its present condition by the year 1624. Architects Bertel Lange and Hans van Steenwinckel the Younger are associated with the structural planning of the castle.

paragraph_text: Acornsoft ceased to operate as a separate company upon the departure of David Johnson-Davies in January 1986. Past this date, Acorn Computers used the Acornsoft name on office software it released in the "VIEW" family for the BBC Master series. In 1986 Superior Software was granted a licence to publish some Acornsoft games and rereleased many, individually and as compilations such as the "Play It Again Sam" and "Acornsoft Hits" series. By agreement, the Acornsoft name was also used on the packaging of some of the subsequent Superior games. Superior chose not to take on Acornsoft's text adventure games, most of which were released in updated versions by Topologika along with some sequels from the same authors.

paragraph_text: Castle of Riddles is a text adventure released by Acornsoft for the BBC Micro (in 1982) and Acorn Electron (1984) home computers. The game was written by Peter Killworth and was one of a series of text adventures written for, or ported to the BBC Micro by the same author (others including "Countdown to Doom" and "Philosopher's Quest"). As with all such games, only text is used. The player must use a simple 'verb-noun' format (e.g. 'Go North', 'Get lamp') to control the game. Unlike Killworth's other Acornsoft adventures, "Castle of Riddles" was not updated and reissued by Topologika so became unavailable after 1985 when Acorn Computers (parent company of Acornsoft) pulled out of the games publishing market. Some of the puzzles however were included in the Topologika version of "Philosopher's Quest".

paragraph_text: Christian Peter Coulson (born 3 October 1978) is an English actor best known for playing the 16 - year old Tom Marvolo Riddle in Harry Potter and the Chamber of Secrets.

paragraph_text: The General Zapped an Angel is a collection of nine science fiction and fantasy stories by American writer Howard Fast, published by William Morrow and Company in 1970. A paperback edition from Ace Books followed later that year. The Ace paperback was reissued in 1978. The contents of this collection were incorporated into Fast's 1975 omnibus, "Time and the Riddle".

paragraph_text: Windsor Castle is a novel by William Harrison Ainsworth serially published in 1842. It is a historical romance with gothic elements that depicts Henry VIII's pursuit of Anne Boleyn. Intertwined with the story are the actions of Herne the Hunter, a legendary ghost that haunts Windsor woods.

Question: What was the last year of the Castle of Riddles publisher?
Answer: 1986