When the next update introduced level scaling for several of the original Shadows of Angmar instances, they also used the Skirmish currencies, making the distinction less pronounced.

Originally skirmishes featured a unique set of currencies, making various items available at Skirmish Camp vendors available only through Skirmishes. Six more Skirmishes were added in later years, for a total of eighteen.

With the expansion's release, twelve Skirmishes were made available, seven of which were set in the existing regions of Eriador and were available instantly, while the other five took place in the new Region of South Mirkwood and had to be unlocked through the Epic storyline. Skirmish Camps have been added to most Regions of the game's world that allow players to barer cosmetics, equipment and upgrades for their Skirmish soldier with marks earned awarded during Skirmishes. Alongside the player fights a customizable Skirmish soldier, a pet NPC which is set to perform one of six roles (which resemble many in-game player classes) and can be improved with various Skirmish traits. Skirmishes are repeatable, randomized and scalable combat based instances that can be accessed from anywhere in the game world and can be run with groups of 1, 3, 6 and 12 players. 2.1.2 Book 2 - Ride of the Grey Company.It also introduced a new 'skirmish' system that allows for repeatable, randomised and scalable combat based instances that can be accessed from anywhere in the game world for 1, 3, 6 and 12 players and new 3, 6 and 12 player private instances that take place in Dol Guldur proper. The game's level cap has been increased to level 65, and the expansion included the conclusion to Volume II of the Epic storyline. The expansion added the region of southern Mirkwood, including Dol Guldur. Unlike the base game and the first Mines of Moria expansion, it had no CD release and one was only available via web based download. The Lord of the Rings Online: Siege of Mirkwood is the second retail expansion pack for the MMORPG The Lord of the Rings Online, released on December 1, 2009, in North America and December 3, 2009, in Europe.

2009 video game The Lord of the Rings Online:

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