Question: What year was id Tech 5 first used in a video game?

Context paragraphs:
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.

Soldier of Fortune: Payback: Soldier of Fortune: Payback is a first-person shooter video game and the third installment of the "Soldier of Fortune" game series.  Unlike the previous two "Soldier of Fortune" games, which were developed by Raven Software utilizing the id Tech 2 and id Tech 3, "Payback" was developed by Cauldron HQ, developed with Cauldron's in-house CloakNT engine, used in their previous first person shooter game, "Chaser".  It is the first game of the series released for the Xbox 360 and PlayStation 3.  The game was released on 14 November 2007.

Id Tech 6: id Tech 6 is a multiplatform game engine developed by id Software.  It is the successor to id Tech 5 and was first used to create the 2016 video game "Doom".  Internally, the development team also used the codename "id Tech 666" to refer to the engine.  The PC version of the engine is based on OpenGL API and additionally Vulkan API is also supported through patch updates.

Quake 4: Quake 4 is a military science fiction first-person shooter video game, the fourth title in the "Quake" series.  The game was developed by Raven Software and published by Activision.  Raven Software collaborated with id Software, the creators and developers of preceding "Quake" games.  id Software supervised the development of the game as well as providing the id Tech 4 engine upon which it was built.  "Quake 4" went gold in early October 2005 and was released on 18 October 2005 for Microsoft Windows and later for Linux, Xbox 360 and OS X.  A special DVD Collectors Edition was released, including promotional material and the game "Quake II" with its expansions, "The Reckoning" and "Ground Zero".  The Xbox 360 version of "Quake 4" is based on the Special Collectors Edition, and includes "Quake II".  On 4 August 2011 the game was made available through Steam.

Id Tech 5: id Tech 5 is a proprietary game engine released by id Software.  It follows its predecessors, id Tech 1, 2, 3 and 4, all of which have subsequently been published under the GNU General Public License.  It was seen as a major advancement over id Tech 4.  The engine was first demonstrated at the WWDC 2007 by John D. Carmack on an eight-core computer; however, the demo used only a single core with single-threaded OpenGL implementation running on a 512 MB 7000 class Quadro video card. <ref name="http://www.Gaminggroove.com posting"> </ref> id Tech 5 was first used in the video game "Rage", followed by "", "The Evil Within" and "".

Thirty Flights of Loving: Thirty Flights of Loving is a first-person adventure video game developed by Brendon Chung's indie video game studio, Blendo Games.  It was released in August 2012 for Microsoft Windows, and in November 2012 for OS X.  The game employs a modified version of id Software's 1997-era id Tech 2 engine—originally used for "Quake 2"—and incorporates music composed by Idle Thumbs member Chris Remo.  It follows three people as they prepare for an alcohol heist and the aftermath of the operation.

Id Tech: id Tech is a series of separate game engines designed and developed by id Software.  Prior to the presentation of the id Tech 5-based game "Rage", the engines lacked official designation and as such were simply referred to as the "Doom" and "Quake" engines, from the name of the main game series the engines have been developed for.  "id Tech" numbers 2, 3, and 4 have been released as free software under the GNU General Public License, along with the source code to "Wolfenstein 3D", "Doom", and "Quake".

QuakeC: QuakeC is an interpreted language developed in 1996 by John Carmack of id Software to program parts of the video game "Quake".  Using QuakeC, a programmer is able to customize "Quake" to great extents by adding weapons, changing game logic and physics, and programming complex scenarios.  It can be used to control many aspects of the game itself, such as parts of the AI, triggers, or changes in the level.  The "Quake" engine was the only game engine to use QuakeC.  Following engines used DLL game modules for customization written in C and C++ from id Tech 4 on.

Id Tech 4: id Tech 4, popularly known as the "Doom 3" engine, is a game engine developed by id Software and first used in the video game "Doom 3".  The engine was designed by John Carmack.  Carmack also created previous game engines, such as those for Doom and Quake, which are widely recognized as significant advances in the field.  This OpenGL-based game engine has also been used in "Quake 4", "Prey", "", "Wolfenstein", and "Brink".

Rage (video game): Rage (stylized as RAGE) is a first-person shooter video game developed by id Software, released in October 2011.  It was first shown as a tech demo on June 11, 2007, at the Apple Worldwide Developers Conference, and was officially announced on August 2, 2007 at QuakeCon.  "Rage" uses id Software's id Tech 5 game engine, and was the final game released by the company under the supervision of founder John Carmack.

Supporting paragraphs: Id Tech 5 Rage (video game)
Answer: 2011