Question: Who developed the game which Folkenstal features weapons and armors in a cosplay? 

full_context: Document 1: Anarchy Online: Anarchy Online is a massively multiplayer online role-playing game (MMORPG) published and developed by Norwegian video game development company Funcom. Released in the summer of 2001, the game was the first in the genre to include a science-fiction setting, dynamic quests, instancing, free trials, and in-game advertising. The game's ongoing storyline revolves around the fictional desert planet "Rubi-Ka", the source of a valuable mineral known as "Notum". Players assume the role of a new colonist to Rubi-Ka. With no specific objective to win "Anarchy Online", the player advances the game through the improvement of a character's skills over time. After more than 15 years, "Anarchy Online" has become one of the oldest surviving games in the genre.
Document 2: Grand Theft Auto Online: Grand Theft Auto Online is a persistent, open world online multiplayer video game developed by Rockstar North and published by Rockstar Games. It was released on 1 October 2013 for PlayStation 3 and Xbox 360, and was released on 18 November 2014 for PlayStation 4 and Xbox One, with a Microsoft Windows version on 14 April 2015. The game is the online multiplayer mode for "Grand Theft Auto V". Set within the fictional state of San Andreas (based on Southern California), "Grand Theft Auto Online" allows up to 30 players to explore the open world and engage in cooperative or competitive game matches. The open world design lets players freely roam San Andreas, which includes open countryside and the fictional city of Los Santos (based on Los Angeles).
Document 3: Rappelz: Rappelz is a free-to-play massively multiplayer online role-playing game. The game is developed by the Korean company Gala Lab, formerly nFlavor. It is published in Europe and North America by Webzen, Inc. in English, French, German, Italian, Polish and Turkish. As of October 2008, Rappelz was also being published by the South East Asia based game publishing company AsiaSoft as RappelzSEA, but was later dropped by the company on September 1, 2009. The game was also published in Arabic for MENA gamers by the Emirati company Game Power 7. The game was released under a different title known as Hope of Nations (Arabic: أمل الشعوب‎ ‎ ), and was commercially launched on March 16, 2009. A new version was released July 15, 2010 by EagleGame in the Philippines. As of Feb 6th 2013 it was confirmed by Rappelz GMs that "Gala Net, Inc. and its subsidiaries Gala Networks Europe and Gala-net Brazil have been acquired by Webzen, Inc.", however it is still being developed by Gala Labs and Gala Japan
Document 4: Folkenstal: Folkenstal from Switzerland, a Cosplay artist, highlighting the weapons and armors from the latest MMORPG, The Elder Scrolls Online.
Document 5: The Elder Scrolls Online: The Elder Scrolls Online is a massively multiplayer online role-playing (MMORPG) video game developed by ZeniMax Online Studios and published by Bethesda Softworks. It was originally released for Microsoft Windows and OS X in April 2014. It is a part of "The Elder Scrolls" series, of which it is the first multiplayer installment.
Document 6: Sword Art Online: Sword Art Online (Japanese: ソードアート・オンライン , Hepburn: Sōdo Āto Onrain ) is a Japanese light novel series written by Reki Kawahara and illustrated by abec. The series takes place in the near future and focuses on various virtual reality MMORPG worlds.
Document 7: Development of The Elder Scrolls IV: Oblivion: The development of "" began in 2002, immediately after its predecessor, "", was published. Rumors of a sequel to "Morrowind" began circulating in June 2004; the sequel's title was identified on September 10, 2004, the date of its official announcement. "Oblivion" was developed by Bethesda Game Studios, and the initial Xbox 360 and personal computer (PC) releases were co-published by Bethesda and Take-Two Interactive's subsidiary, 2K Games. According to interviews with Bethesda staff, the publisher-developer relationship—one of the few independent relations in the industry—worked well, and Bethesda was not subject to excessive corporate guidance. Originally scheduled for a November 22, 2005 release, in tandem with the Xbox 360's launch, "Oblivion" was delayed to a March 21, 2006 release for Windows PCs and the Xbox 360.
Document 8: Shenmue Online: Shenmue Online (シェンムーオンライン「莎木OL」, Shenmū Onrain) was an announced MMORPG where players participate in scenarios from "Shenmue II", joining one of three clans, led by Shen Hua, Xiu Ying, and Wu Ying Ren, all significant characters from the story.
Document 9: Star Wars Roleplaying Game (Fantasy Flight Games): The Star Wars Roleplaying Game is a tabletop role-playing game set in the "Star Wars" universe first published by Fantasy Flight Games in August 2012. It consists of three different standalone games, each one conceived to play a particular type of character:
Document 10: Might and Magic: Heroes Online: Might and Magic Heroes Online is a free-to-play MMORPG released in September 2014, developed by Blue Byte and its Mainz division. It is part of the "Heroes of Might and Magic" franchise.
Document 11: The Elder Scrolls III: Morrowind: The Elder Scrolls III: Morrowind is an open-world, fantasy, action role-playing video game developed by Bethesda Game Studios and published by Bethesda Softworks. It is the third installment in "The Elder Scrolls" series of games, following "", and preceding "". It was released in North America in 2002 for Microsoft Windows and Xbox. The main story takes place on Vvardenfell, an island in the Dunmer province of Morrowind, part of the empire of Tamriel. The central quests concern the deity Dagoth Ur, housed within the volcanic Red Mountain, who seeks to gain power and break Morrowind free from Imperial reign. Although primarily a fantasy game, with many game-play elements and Western medieval and fantasy fiction tropes inspired by "Dungeons & Dragons" and previous RPGs, it also features some steampunk elements, and drew considerable inspiration from Middle Eastern art, architecture, and cultures.
Document 12: Social interaction in MMORPGs: Social interactions in MMORPGS take the form of in-game communication, virtual behaviors, and the development of interpersonal and group relationships. In "massive multiplayer online role-playing games" (MMORPGs), cooperation between players to accomplish difficult tasks is often an integral mechanic of gameplay, and organized groups of players, often called guilds, clans, or factions, emerge. Sometimes the relationships players from within the game spill over into friendships or romantic relationships in the material world. In other instances, romantic partners and groups of material world friends find that playing together strengthens their bonds.
Document 13: Dagorhir: Dagorhir Battle Games is a Live action role-playing game (battle game) with full-contact melee fighting and ranged combat as its primary focus. Fighters typically use foam weapons such as swords, flails, spears, bows and arrows, javelins, axes, and other medieval weapons. Participants wear period costume and are expected to stay in-character during events, although the amount of seriousness the role-playing aspect receives varies greatly by unit and chapter.
Document 14: The Elder Scrolls IV: Oblivion: The Elder Scrolls IV: Oblivion is an action role-playing video game developed by Bethesda Game Studios and published by Bethesda Softworks and the Take-Two Interactive division 2K Games. It is the fourth installment in "The Elder Scrolls" action fantasy series, following "" and preceding "". The game was released for Microsoft Windows and Xbox 360 in March 2006, and on PlayStation 3 in March 2007, with a mobile version of the game released on May 2, 2006. Taking place within the fictional province of Cyrodiil, "Oblivion"' s main story revolves around the player character's efforts to thwart a fanatical cult known as the "Mythic Dawn" that plans to open portal gates to a demonic realm known as "Oblivion". The game continues the open world tradition of its predecessors by allowing the player to travel anywhere in the game world at any time and to ignore or postpone the main storyline indefinitely. A perpetual objective for players is to improve their character's skills, which are numerical representations of certain abilities. Early in the game, seven skills are selected by the player as major skills for their character, with those remaining termed as minor skills.
Document 15: Aetolia (online game): Aetolia, the Midnight Age, is an online MMORPG MUD, owned and operated by Iron Realms Entertainment. Aetolia launched on October 7, 2001, with a duplicate map layout of Achaea, Dreams of Divine Lands. Originally Aetolia was a dark gothic fantasy world, with the backstory of everyone's memory having been erased (known as the Great Artifice in the game), however the game is currently transitioning to a steampunk type realm, with the introduction of technology trees (powered by ylem), the Dreikathi Empire invasion, and other technological advancements. The game features a multitude of playable races and classes, with players able to hold multiple classes.
ground_truth: ZeniMax Online Studios