Fans of Massively Multiplayer Online Role Playing Games are famously enthusiastic about “their” games, so it should come as no surprise that the players of Anarchy Online have been eagerly anticipating the next expansion for their game ever since the last one, Shadowlands, launched in 2003. Alien Invasion is the third add on product for Anarchy Online, following Notum Wars, a Player versus Player booster pack, and Shadowlands. Both the original Anarchy Online and Notum Wars are included with Alien Invasion, but unfortunately Shadowlands is not, so players interested in the new content in Shadowlands will have to buy that separately, or upgrade their account by purchasing the downloadable version of SL.