Fischbach first joined YouTube on March 6, 2012, creating a channel under the username "Markiplier", and uploaded his first video on April 4, 2012. Fischbach's first series was a playthrough of the video game Amnesia: The Dark Descent. After playing several other game series, including Penumbra and Dead Space, YouTube banned Fischbach's AdSense account. Though he appealed to YouTube as a last effort, the appeal was ultimately lost. Because of this, a new and current channel was created on May 26, 2012 and dubbed MarkiplierGAME.