<P> On 5 February 2010 it was announced that the game had reached the alpha stage of development on all platforms . Two weeks later the developers released a new teaser trailer that showed actual game - play footage , and the developers began accepting pre-orders for the game through their website . Also revealed was that the game was at that point being tested on all three intended platforms . It was also announced that the game would be released simultaneously for all of them in August 2010 . This was later rescheduled , and the game was then expected to have a 8 September 2010 release . It was then later announced on 27 August 2010 that the game had officially gone Gold and would soon be ready to sold . On 3 September , the games demo was released containing selected parts of the gameplay and story . It was then successfully released on 8 September 2010 . </P>
when did amnesia the dark descent come out
8 September 2010