Dice's brand new game, the newest entry in the renowned Battlefield series. Persistent online multiplayer, a fun new game engine, colorful graphics, a whole lot of customization, and it's all FREE!
IGN's summary:
"Battlefield Heroes is a persistent online shooter that offers a much more light hearted and colorful view of combat than the Battlefield games on the PC and consoles. The game is free-to-play, with optional micro transactions, and it's a way for EA and DICE to delve into the growing free-to-play market."
Battlefield Heroes Website/Download (http://www.battlefieldheroes.com/)
(Free registration is required to download, so I can't provide a direct download link.)