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?

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Gonner (video game): Gonner (stylized as GoNNER) is a roguelike video game developed by Art in Heart and published by Raw Fury.  It was released on October 12, 2016 for Microsoft Windows and macOS.  A Nintendo Switch version of the game was scheduled for release on June 8, 2017, but has been delayed to June 29, 2017.  The game has been described as a "shooter" version of "Spelunky".

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).

Doom 3: Resurrection of Evil: Doom 3: Resurrection of Evil is a first-person shooter video game developed by Nerve Software and published by Activision.  It was released for Microsoft Windows on April 3, 2005, as an expansion pack and sequel to "Doom 3" and on October 5, 2005, for the Xbox video game console.  The Xbox version does not require the original "Doom 3" in order to play, and includes the original "Doom", "", and "Master Levels for Doom II".

Mystery Dungeon: Shiren the Wanderer: Mystery Dungeon: Shiren the Wanderer is a roguelike video game developed and published by Chunsoft.  It is the second entry in the "Mystery Dungeon" series, following 1993's "".  It was originally released for the Super Famicom in 1995 in Japan; a Nintendo DS remake was published by Sega in 2006 in Japan and 2008 in the West.

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.

Fate: Undiscovered Realms: Fate: Undiscovered Realms is an action role-playing roguelike video game developed by WildTangent and released on July 17, 2008, as a stand-alone expansion to the 2005 PC game "Fate".  The retail version sold in stores includes the original game as well.  It was followed by a second expansion, "", in 2009.

Enter the Gungeon: Enter the Gungeon is a bullet hell roguelike video game developed by Dodge Roll and published by Devolver Digital.  It follows four adventurers as they descend into the Gungeon to find a gun to kill their past.  The game was released worldwide for Microsoft Windows, OS X, Linux, and PlayStation 4 on April 5, 2016, and is scheduled to release on Xbox One on April 5, 2017, as well as on Nintendo Switch on a later date.

Okhlos: Okhlos (stylized as OKHLOS) is an action roguelike video game developed by Argentina-based independent video game developer Coffee Powered Machine and published by Devolver Digital.  It was released on 18 August 2016.

Sword of the Stars: The Pit: Sword of the Stars: The Pit is a roguelike video game developed by Kerberos Productions.  It is set in the universe of the game "Sword of the Stars" and is self-published through funding from an Indiegogo campaign.  It was released on GamersGate on February 21, 2013 and released on steam on March 8, 2013.  Versions for Xbox 360, Android and iOS are planned.

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.

Supporting paragraphs: DRL (video game) ZeniMax Media
Answer: 2016