Multiplayer Games with Achievements

I’ve been searching for a good, fun, and entertaining multiplayer game with achievements in it. I’m an EXTREME achievement addict so I am dying to find out some games. Thanks

Try out some of these popular and very fun games if you haven’t already:

Fantasy Online (4 achievements)
^{Description: Without naming names, players have likened Fantasy Online to the adventures of a certain bow-wielding adventurer in the style of a certain MMO.}

Swords & Potions (4 achievements)
^{Description: Try to become the most successful merchant by running your own item shop in the world of Tomagar. Trade items with adventurers, craft powerful items and earn a profit from your sales. Challenge and surpass your peers using a variety of covert operations.}

Stick Arena: Ballistick (4 achievements)
^{Description: Take down your opponents with 12 weapons including The new Flamethrower, Chain Gun, Railgun, Chain Saw, Laser Sword, and Tesla Helmet. Or, kick it oldschool with the original Katana, AK-47, Sledgehammer, Shotgun, Baseball Bat, or Glock. Battle it out the new Space Lab and Sky Islands maps, or classic Office, Construction Yard and Sewers settings.}

Here are the badged MMOs on Kong: http://www.kongregate.com/badges?category=multiplayer

Many people like TDP4; however, I don’t like it. Tyrant and Fantasy Online are both pretty nice.