The game features 37 countries, and 31 events. New disciplines included 10m Synchronised Platform Diving, Trampoline, Beach Volleyball and Keirin.
The game features an online mode for players wishing to compete with other challengers worldwide. The "national pride" is a ranking system in the online mode, where the players have the possibility to collect medals for their favourite country.[1]
Chris Schilling of IGN said of the PlayStation 3 and Xbox 360 versions that "Sega's celebration of the year's biggest sporting event is better than you might expect." In his opinion, the events of both versions would not hold up too well in the long term, but that is not really what an Olympics game is about. He praised the online and offline multiplayer mode.[8][9] The German PC game magazine GameStar criticized the gameplay, because it is almost impossible to play it with the mouse and the keyboard, so the player is forced to get a gamepad to play London 2012. They also mentioned that the gameplay of the events would not be different from each other and that the AI of the computer opponents is not balanced.[20]
The Digital Fix gave the PS3 version seven out of ten and said it was "a fine example of an Olympics type game. The presentation is excellent, the events are more varied than you might expect and the subtleties of controls mean you'll have a wonderful time as you begin any experience with the game."[21]Metro gave the Xbox 360 version a similar score of seven out of ten and said it was "Not just an Olympics tie-in but a proper sports game, with the majority of events finding a good balance between realism and enjoyment."[15] However, Digital Spy gave the same console version three stars out of five and said, "There are lots of events that can be enjoyed time and time again, although far less than the 46 advertised. Motion controls add very little, but do at least offer new ways to experience the game, alongside a plethora of game modes. While London 2012: The Game may fall short of Gold, it's certainly deserving of a respectable Bronze."[14]
The game held the top spot of the UK All Format chart for three weeks following its release.[22] It reached number 9 in the PS3 PAL downloads chart.[23] As of May 2013, the game has sold 680,000 copies in the US and Europe.[24]