Pro Evolution Soccer 2011 (officially abbreviated as PES 2011 and known as World Soccer: Winning Eleven 2011 in Japan) is a football video game in the PES series being developed and published by Konami with production assistance from the Blue Sky Team.
The game was announced on 9 February 2010 and is set to be released on the 30 September 2010 on the PC, PS3 and Xbox 360, to once again, compete with the FIFA series. However the UK version of the game will be released on 8 October 2010.
Both the UEFA Champions League and UEFA Europa League will feature within the game, like last year; and for the first time Copa Libertadores will be fully licensed.
The first trailer was released on 4 May 2010 (found here).
As of 18 August 2010, the game was announced as 80% complete. For the first time, the demo will be based on the final code (100% game complete).