Question: In what month and year was the video game that inspired the Overwatch digital comic series released?

Context articles: Creature Academy
Winston (Overwatch)
Adventures of Lolo 3
Chaos Rings
Left 4 Dead: The Sacrifice
Miranda Lawson
Overwatch (digital comic series)
Amaze Entertainment
Characters of Overwatch
Infamous (comics)

Creature Academy is an all-ages/science fiction/fantasy digital comic series created by Kevin Hanna, that ran for four issues and was published in a collected edition for the first time in 2013.
Winston is a player character appearing in the 2016 video game "Overwatch", a Blizzard Entertainment developed first-person shooter and its related media.
 Winston is one of the more prominent characters used by Blizzard in "Overwatch" media outside of the video game; the character made an appearance in the game's cinematic trailer and is the focus of an animated short released by Blizzard.
Adventures of Lolo 3 (Japanese: アドベンチャーズオブロロ2 , Hepburn: Adobenchāzu obu Roro Tsū ) is a puzzle video game released in 1991 by HAL Corporation for the Nintendo Entertainment System.
 It is based on the Japanese Eggerland video game series.
 It was the third and final installment of the Adventures of Lolo series released in the U.S. New gameplay elements were added to make the base gameplay deeper than before.
 However, in 1994, a game titled "Adventures of Lolo" was released for Game Boy in Europe (and Japan).
 Said Game Boy release was not the same game as the original NES release of the same name, but rather a fourth sequel in the series with continued additions to the base gameplay.
Chaos Rings is a role-playing video game series released primarily on mobile platforms.
 It is developed by Media.Vision and published by Square Enix.
 The eponymous first game in the series released for iOS in 2010, then later ported to other mobile and portable platforms including Android and PlayStation Vita.
 There are currently four games in the "Chaos Rings" series, and each uses the same gameplay base.
 Effective May 31, 2016, Square Enix ended distribution of the first three games in the series on Google Play and Apple's App Store, leaving Chaos Rings III as the only title still available for download or purchase on those markets.
 Currently, all titles in the series, except Chaos Rings III, are still available for purchase and download on Amazon's App Store.
The Sacrifice is a digital comic book created by Valve Corporation based on the "Left 4 Dead" video game, detailing the events that the protagonists–Zoey, Louis, Francis, and Bill–experience after the chronological final campaign, "Blood Harvest".
 It accompanies a campaign in both "Left 4 Dead" and "Left 4 Dead 2" of the same name.
 It also serves as a prequel to the campaign from "Left 4 Dead 2" called "The Passing", which makes allusions to the events.
Miranda Lawson is a fictional character in the role-playing video game series "Mass Effect" by BioWare.
 In it, Miranda is an officer of the pro-human group Cerberus, first appearing in "Mass Effect Galaxy" and then serving as a squadmate in "Mass Effect 2".
 In addition to these, the character also makes an appearance in the "" comic series, in "Mass Effect 3" (provided the player does not import a save where she dies), and in issues 5, 6, 8 and 9 of the "Mass Effect: Foundation" comic series.
 She is revealed to have been genetically designed by her father (Henry Lawson) to be perfect, and ran away from home to join Cerberus.
Overwatch is an American digital comic series published online by Blizzard Entertainment and republished by Dark Horse Comics' digital service, featuring events surrounding the characters of the "Overwatch" universe.
 The title was launched on April 21, 2016, and has continued to be published with no set schedule.
Amaze Entertainment was an American video game developer from the United States that developed over 100 games in its ten-year history spanning 12 years from 1997 to 2009.
 (selling nearly 40 million units), for several video game platforms, with headquarters located in Kirkland, Washington.
 Amaze was founded by serial entrepreneur Dan Elenbaas and his business partners Todd Gilbertsen and David Mann.
 Amaze’s primary focus was licensed games based on movie franchises, comic series, and original titles for established video game franchises.
 Amaze grew to become one of the world's largest independent video game developers, with nearly 300 employees in four studios.
 Amaze was acquired by Foundation 9 Entertainment on November 14, 2006.
The team-based first person shooter video game "Overwatch", developed by Blizzard Entertainment and released in May 2016, features 25 playable characters (heroes) and a number of supporting characters as part of the game's narrative, which is told through animated media and digital comics outside of the game.
Infamous is a 2011 comic book series based on the video game of the same name published by DC Comics in association with Sucker Punch Productions (the developer of the game).
 The comic book will follow the adventure of superhero, Cole MacGrath, and takes place in between the events of "Infamous" and "Infamous 2".
 The comic primarily depicts Cole's escape from Empire City in the first game to New Marais in the second game.
 The comic features illustrations by Eric Nguyen as well as a cover art by Doug Mahnke with the story written by William Harms.
 The first issue of the six-part comic series was released in March 2011.