A playable demo of Metal Gear Solid: Peace Walker, a new game for the PSP designed as a full sequel to Metal Gear Solid 3: Snake Eater, has been released in Europe via PlayStation Store, Konami Digital Entertainment announced. Developed by Hideo Kojima, the game picks up where Metal Gear Solid 3 left off, as players take control of Snake once again. Metal Gear Solid: Peace Walker drops the player into a series of hostile scenarios, as a terrible plan for world domination unfolds. Infiltrating a series of strategic strong-holds, the player takes on a number of increasingly varied missions, and will face some of the most incredible end-of-level adversaries the series has ever produced. Metal Gear Solid: Peace Walker will be available across the US on May 25th - the game will be released in the UK on May 28th, 2010.