

The game became available to pre-order on 16 August 2013, and was released on 10 September 2013 to mixed reviews from critics. While set in the same universe as the previous game, it features a new cast of characters and time setting.

Originally meant to be a mod, the game is an indirect sequel to Amnesia: The Dark Descent, which was both developed and produced by Frictional Games. The collection was also released for Nintendo Switch with a release trailer, on September 12, 2019.Amnesia: A Machine for Pigs is a survival horror video game developed by The Chinese Room and published by Frictional Games. It was released for Xbox One on September 28, 2018. A couple of weeks later, on September 21, Frictional announed that the Xbox One edition of the game would be released on September 28, and that it would feature a Hard Mode for Amnesia: The Dark Descent, which would make the game harder for experienced players by decreasing the amount of Items from the game, making enemies deal more damage and spot the player more easily, disabling the autosave feature, among other things. On September 7, 2018, Frictional Games announced that the Xbox One release of Amnesia: Collection would be delayed due to "technical issues". Microsoft released a news update on August 25 with a preliminary release date set at August 31, however this was later removed with a notice citing more information to be available regarding the release shortly. On August 27, 2018, Frictional Games teased on Twitter that the collection would be released on Xbox One in the near future, mentioning that more information regarding this would be released on September 7. These were later added as Achievements in a patch to the Steam release of the game, and was also added to the Xbox One edition after its release. The release brought a few new features to the game, most notably the addition of trophies to all three games. The Frictional Games team later clarified a few things about the collection in a blog post on their website on October 21. The collection was first announced for PS4 by Frictional Games on October 19, 2016, with a very unique trailer consisting entirely of footage taken from early YouTube "Let's Plays" of Amnesia: The Dark Descent.
