The twist on combat mechanics and enemy behavior design met with much praise, but repetitive level and mission structure were often faulted. The complete lack of a HUD was also positive noted. Several retrospective journalistic and website articles have ranked "Dead Space" as one of the greatest video games of all time, pointing out its innovations in the survival horror genre. A 2011 "GamePro" article noted that the game promoted Electronic Arts as a potential home for original IPs, and generally found a balance between action and horror despite some contemporary reviews having mixed reactions. In an article on the series from 2018, "Game Informer" said the title stood out for its unique gameplay gimicks and atmosphere compared to other video games of the time. Magazine "Play", in a 2015 feature on the game's production, said that "Dead Space" distinguished itself by incorporating more action elements into established genre elements, and positively compared its atmosphere to "BioShock" from 2007 and "" from 2013. In a 2014 article concerning the series' later developments, "Kotaku" cited it as "one of the best horror games of the seventh generation of consoles". At release, "Dead Space" reached tenth place in North American game sales, compiled in November by the NPD Group. Recording sales of 193,000 units, it was the only new property to enter the top ten. It was the only Electronic Arts property within that group. In early analysis, low sales of the title were attributed to strong market competition at the time, though sales improved over time due to positive critical reception. By December, the game had sold 421,000 units across all platforms. The game, along with "Mirror's Edge", was considered a commercial disappointment following its extensive marketing. Electronic Arts CEO John Riccitiello said that the company would have to lower its expected income for the fiscal year due to multiple commercial disappointments including "Dead Space". In February 2009, Electronic Arts CFO Eric Brown confirmed that all versions of "Dead Space" had sold one million copies worldwide. Following the success of "Dead Space", EA Redwood Shores was restructured as a "genre studio" called Viceral Games, going on to develop several titles alongside their work on the "Dead Space" franchise, which spawned both further additional media and spin-off titles on several platforms. A direct sequel, "Dead Space 2", was released in 2011. A third title, "Dead Space 3", released in March 2013. The third game met with disappointing sales, and a prospective sequel was cancelled before Visceral Games was closed down in 2017.