Question: Which board game involves an adventure motif, Camel Up or Arkham Horror?
Context: Elder Sign is a cooperative card and dice game, based on the Cthulhu Mythos of horror writer H.P. Lovecraft and Chaosium's Call of Cthulhu roleplaying game.  It is published by Fantasy Flight Games, which also produces the Cthulhu Mythos games "Arkham Horror", "", "Mansions of Madness", and "Eldritch Horror". Tide of Iron is a World War II based wargame designed and published in 2007 by Fantasy Flight Games, also notable for publishing other large games containing a large number of counters and/or other components such as "" and "Arkham Horror". Flotilla is a 2010 turn-based strategy space combat video game developed by Brendon Chung's studio, Blendo Games.  The game was released in March 2010 on Steam for Microsoft Windows and on Xbox Live Indie Games for the Xbox 360.  "Flotilla" was designed with Microsoft's XNA tools, and its development was influenced by animals as well as board games such as "Axis and Allies" and "Arkham Horror".  The game takes the player in an adventure through a randomly generated galaxy. Camel Up is a board game for two to eight players.  It was designed by Steffen Bogen and illustrated by Dennis Lohausen, and published in 2014 by Pegasus Spiele.  Players place bets on a camel race in the desert; the player who wins the most money is the winner of the game.  "Camel Up" won the Spiel des Jahres in 2014. Arkham Horror: The Card Game is produced by Fantasy Flight Games.  It is a cooperative game set in the universe of Chaosium's "Call of Cthulhu" roleplaying game which is based on the Cthulhu Mythos of H.P. Lovecraft and other horror writers.  The setting of the game is based in the titular (fictional) town of Arkham, MA.  The game was originally leaked in May 2016, before being officially announced in August of that same year.  It made its first limited public release at Arkham Nights 2016 to a sold out crowd. Arkham Horror is an adventure board game designed by Richard Launius, originally published in 1987 by Chaosium.  The game is based on Chaosium's roleplaying game "Call of Cthulhu", which is set in the Cthulhu Mythos of H.P. Lovecraft and other horror writers.  It was revised and reprinted by Fantasy Flight Games in 2005.  In this game, players take on the role of investigators in Lovecraft's Massachusetts town of Arkham.  Gates to other planes open throughout the town.  If too many gates open, a powerful alien being will enter, likely destroying the town and possibly threatening the world.  The investigators must avoid or fight alien creatures that enter Arkham through the gates, enter the gates themselves, survive the alien places beyond, return to Arkham, and close the gates. Isis Adventure is a series of puzzle games presented by Sonic Games, a Shropshire-based business.  The game involves opening physical puzzle boxes made of precision-engineered anodized aluminum to reveal unique codes that can be redeemed for prizes or to reveal further clues.  The game began in September 2006.  The game manufacturer's website contains a list of names it claims to be prize winners. Ex Libris: The Game of First Lines and Last Words is a party game of literary bluff related to fictionary.  First published in 1991 by the English board game company Oxford Games Ltd., Ex Libris was devised and compiled by Leslie Scott (the creator of Jenga) and designed by Sara Finch.  The game involves having to write fake, but plausible, opening (or closing) sentences of genuine books in an attempt to fool fellow players into believing your words are the authentic first (or last) lines of a given book. Frantic is a Commodore VIC-20 space shoot-em-up video game published by Imagine Software in 1982.  The game involves the player piloting a space ship whilst trying to keep an X and Y axis centered on the enemy, which enters the field of play at varying speeds and directions.  Slower enemies appear horizontally and quicker enemies diagonally.  The game's title alludes to the fact that the game is timed, as fuel levels deplete during play.Centering the X and Y axis to target enemies involves engaging thrusters which in turn burns fuel.  The game can be played with either a joystick or keyboard. Papo & Yo is a fantasy adventure video game, released on August 14, 2012 on the PlayStation 3 via the PlayStation Network and since April 18, 2013 on Microsoft Windows through Steam.  It was released on January 7, 2014 on OS X and Linux through the Humble Indie Bundle X.  The game involves a young Brazilian boy Quico who, while hiding from his abusive, alcoholic father, finds himself taken to a dream-like favela, and meeting a normally docile creature, Monster.  The player, as Quico, can interact with Monster and manipulate the buildings of the favela in unique ways, such as by stacking individual shacks on each other, to complete puzzles and progress in the game.  "Papo & Yo" was designed by Vander Caballero, who created the story based on his own past in dealing with an abusive, alcoholic father.
Answer: Arkham Horror