I haven't heard of this game until today!I found this on the Wonder Woman Facebook page along with a link to the Infinite Crisis Facebook page and website.
To the left is a wallpaper that can be downloaded from the main website, link above.
It looks like there's a lot to get into here, with a multitude of DC characters from different realities. What's interesting is that it appears that they chose Wonder Woman to promote this game on the front page which if found very interesting.
Here's a little blurb about the game. . .
Infinite Crisis (IC) is a next-generation, free-to-play MOBA featuring fast-paced battles, streamlined RPG mechanics, and iconic locations and characters from across the DC Mulitverse. Recruit a roster of powerful heroes and villains to command in destructive combat where catastrophic events can reshape the map and the environment itself can become a weapon.
INFINITE CRISIS © 2013 Warner Bros. Entertainment Inc. Developed by Turbine, Inc. All rights reserved. DC LOGO, and all characters, their distinctive likenesses, and related elements are trademarks of DC Comics © 2013. WB GAMES LOGO, WB SHIELD: ™ & © Warner Bros. Entertainment Inc., Turbine and the Turbine logo are trademarks or registered trademarks of Warner Bros. Entertainment Inc. All other trademarks are the property of their respective owners.