Question: DRL (formerly DoomRL), short for Doom, the roguelike video game developed by ChaosForge, following a cease and desist notice from "Doom" trademark owner, ZeniMax Media, the game's names was changed to "DRL" in which year?

full_context: Document 1: Doom (series): Doom (stylized as DOOM) is a series of first-person shooter video games developed by id Software. The series focuses on the exploits of an unnamed space marine operating under the auspices of Union Aerospace Corporation (UAC), who fights hordes of demons and the undead in order to survive.
Document 2: Doom (2016 video game): Doom is a first-person shooter video game developed by id Software and published by Bethesda Softworks. A reboot of the "Doom" franchise, it is the fourth title in the main series and the first major installment since "Doom 3" in 2004. It was released worldwide on Microsoft Windows, PlayStation 4, and Xbox One on May 13, 2016 and is powered by id Tech 6. A port for Nintendo Switch developed by Panic Button is scheduled for release in Q4 2017.
Document 3: Deep Silver: Deep Silver is the video game publishing division of German multinational corporation Koch Media, based in Planegg, Bavaria. Since its founding in 2002, Deep Silver has published and co-published several major titles, notably the Dead Island and Homefront series, as well as taking stewardship over the Saints Row series following THQ's bankruptcy . In total, the company has released more than 200 games.
Document 4: ZeniMax Media: ZeniMax Media Inc. is an American media company. The company is known for owning Arkane Studios (developer of "Dishonored" and "Prey"), BattleCry Studios (developer of "BattleCry"), id Software (developer of the "Doom" and "Quake" series, and "Rage"), MachineGames (developer of ""), Tango Gameworks (developer of "The Evil Within"), Bethesda Softworks with its Bethesda Game Studios (developer of "The Elder Scrolls" and "Fallout" series) and ZeniMax Online Studios (developer of "The Elder Scrolls Online"). ZeniMax is headquartered in Rockville, Maryland, with offices in Asia / Asia Pacific, Australia and Europe (Germany, France, Benelux).
Document 5: DRL (video game): DRL (formerly DoomRL), short for Doom, the Roguelike, roguelike video game developed by ChaosForge. Since 2002 in-development and based on the first-person shooters "Doom" and "Doom II", it was released for Microsoft Windows, Linux and OS X. Following a cease and desist notice from "Doom" trademark owner, ZeniMax Media, the game's names was changed to "DRL" in 2016.
Document 6: Rogue Entertainment: Rogue Entertainment was a computer game developer based in Dallas, Texas, which was active in the late 1990s. It was founded by Rich Fleider, Steve Maines, and Jim Molinets in 1994. Rogue Entertainment's office was in the same building as id Software, all of their games used game engines created by id Software, and two of their games were expansions for id Software's "Quake" series of games. The company's first game, "Strife: Quest for the Sigil", was released as shareware on February 23, 1996, with the retail version later being released on May 31, 1996. Many former Rogue Entertainment employees moved to Nerve Software after Rogue Entertainment shut down.
Document 7: Remedy Entertainment: Remedy Entertainment Oy, internationally doing business as Remedy Entertainment Ltd. (commonly referred to as Remedy), is a Finnish video game developer based in Espoo, Finland. Founded in 1995, the company is best known for developing "Max Payne", "Alan Wake", and "Quantum Break".
Document 8: Doom engine: id Tech, also known as id Tech 1 or the "Doom" engine, is the game engine that powers the id Software games "Doom" and "". It is also used in "Heretic", "", "Strife: Quest for the Sigil", "Hacx: Twitch 'n Kill", "Freedoom", and other games produced by licensees. It was created by John Carmack, with auxiliary functions written by Mike Abrash, John Romero, Dave Taylor, and Paul Radek. Originally developed on NeXT computers, it was ported to DOS for "Doom"<nowiki>'</nowiki>s initial release and was later ported to several game consoles and operating systems.
Document 9: Marty Stratton: Marty Stratton is an executive producer and game director for Id Software. After joining Id Software in 1997, Stratton became the Director of Business Development, overseeing the company's interests in European markets. In 2006, he became responsible for the overall development of "Quake Live", "Rage", and "Doom" with ZeniMax Media and Bethesda Softworks respectively. Prior to his arrival at Id Software, Stratton previously worked for Adeline Software International and Activision in Quality Assurance on "Time Commando" and "".
Document 10: NetherRealm Studios: NetherRealm Studios is an American video game developer based in Chicago, Illinois. The company was founded in 2010 replacing WB Games Chicago and Midway Games, which purchased assets in 2009 that were formerly owned by Midway Games Chicago after Midway filed for bankruptcy.
Document 11: Final Doom: Final Doom is a first-person shooter video game released in 1996. The game contains the same weapons, items, and monsters from "", and was distributed as an id Software product.
Document 12: Epic Games: Epic Games, Inc. (formerly Potomac Computer Systems and later Epic MegaGames, Inc.) is an American video game development company based in Cary, North Carolina, partially owned by Tencent. Founded in 1991, it is best known for the development of Unreal Engine technology, which has powered its in-house "Unreal", "Gears of War" and "Infinity Blade" series as well as many other games, and has been awarded by Guinness World Records as the "most successful video game engine".
Document 13: Rogue (video game): Rogue (also known as Rogue: Exploring the Dungeons of Doom) is a dungeon crawling video game by Michael Toy and Glenn Wichman and later contributions by Ken Arnold. "Rogue" was originally developed around 1980 for Unix-based mainframe systems as a freely-distributed executable (Public domain software). It was later included in the official Berkeley Software Distribution 4.2 operating system (4.2BSD). Commercial ports of the game for a range of personal computers were made by Toy, Wichman, and Jon Lane under the company A.I. Design and financially supported by the Epyx software publishers. Additional ports to modern systems have been made since by other parties using the game's now-open source code.
Document 14: Bethesda Softworks: Bethesda Softworks LLC is an American video game publisher based in Rockville, Maryland. The company was founded by Christopher Weaver in 1986 as a division of Media Technology Limited, and in 1999 became a subsidiary of ZeniMax Media. In its first fifteen years, it was a video game developer and self-published its titles. In 2001, Bethesda spun off its own in-house development team into Bethesda Game Studios, and Bethesda Softworks became a publisher only. It currently also publishes games by ZeniMax Online Studios, id Software, Arkane Studios, MachineGames, Tango Gameworks and BattleCry Studios.
Document 15: Doom II: Hell on Earth: Doom II: Hell on Earth is a first-person shooter video game, the second title of id Software's "Doom" franchise. It was originally released for MS-DOS computers in 1994 and Macintosh computers in 1995. Unlike "Doom", which was initially only available through shareware and mail order, "Doom II" was a commercial release sold in stores. "Master Levels for Doom II", an expansion pack that includes 21 new levels, was released on December 26, 1995 by id Software.
ground_truth: 2016