game was less positively received critically than previous installments, with criticism aimed at the control mechanics and the multiplayer mode. Tom Clancy's Splinter Cell: Double Agent (2006) For the series' fourth installment, Double Agent, two separate versions were created, one for generation six consoles and the Wii, and the other for Xbox 360, Microsoft Windows, and PlayStation 3. Double Agent features a "trust system" that presents the player with moral dilemmas. It is the first game in the series with a hub-like area, where Sam can explore and do objectives between missions. This is also the only game in the series to have different endings based on player decisions, but only one ending is considered canon. Tom Clancy's Splinter Cell: Conviction (2010) Conviction was officially announced on May 23, 2007, when Ubisoft released a trailer for the game. The game was due for release on November 16, 2007. However, the game missed its initial launch date, and on May 19, 2008, it was reported that Conviction was "officially on hold" and that the game had been taken "back to the drawing board". Ubisoft announced that the game had been pushed back to the 2009–10 fiscal year. At E3 2009, the developers confirmed that the "new" Conviction had been in development since early 2008, commenting that "the gameplay has evolved a lot" and "the visual direction is simply much better". The game's release date was pushed back several times. On March 18, 2010, the demo was released for Xbox 360. Ubisoft wanted to make the fifth game more accessible, so Conviction was designed around the new core elements "Mark and Execute" and "Last Known Position", while stealth elements present in the previous games were omitted, such as the ability to whistle, lock pick, and hide bodies. Conviction uses a cover system and adds simple interrogation sequences to the series. Tom Clancy's Splinter Cell: Blacklist (2013) Blacklist is the sixth installment in the series, developed by Ubisoft Toronto and was released on August 20, 2013. Blacklist boasts new features combining gameplay from Chaos Theory and Conviction. Series veteran Michael Ironside was replaced in his role as Sam Fisher by actor Eric Johnson. In the game, Fisher has been appointed as the commander of the new "Fourth Echelon", a clandestine unit that answers solely to the President of the United States. She has denied any existence of the agency and Fourth Echelon is