CrossFire is an online tactical first-person shooter developed by Smilegate Entertainment. Players are divided into two teams, the "BLACK" and the "Global Risk," and battle it out in various game modes such as Search & Destroy, Escape, and Team Deathmatch. Players can customize their weapons and characters with a variety of skins, accessories, and other items. CrossFire also features weekly clan wars and tournaments, as well as in-game achievements and rankings. CrossFire has become one of the highest grossing online shooters in the world and has been enjoyed by millions of players worldwide since its initial release in 2007.
Discontinued No further updates since November 2013: http://assault.cubers.net/ (like Alien Arena, also noted to be discontinued).