Naughty Dog is offering up a third round of downloadable content to Uncharted 2 players. Dubbed Siege Expansion, it extends the multiplayer experience with 6 additional character skins, 2 new maps and a total of 11 new collectible PSN trophies.

Most notable is the inclusion of a new co-op gameplay mode called “Siege” that pits up to 2-3 players against waves of enemies whilst vying to locate and defend Capture Points situated across each map. As time elapses, the foes become progressively tougher to defeat. The mode will be playable across nine maps, including “The Museum” and “The Highrise,” two locales that make their debut in this pack.

The Siege Expansion is set to hit PSN later this month and will set you back £4.79. While SCEA has yet to make a official announcement, US pricing will likely fall within the ballpark of $5-6 dollars.

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