When DC Universe Online debuted last January, it became the first MMO available for the PlayStation 3. Sony Online Entertainment wants to celebrate the first anniversary of this hit game by providing a special mission and item in game today.

“We broke a lot of new ground with last year’s launch of DC Universe Online, both by successfully creating the first PS3™ MMO community and adding true action combat to the genre,” said Lorin Jameson, Executive Director of Development, Sony Online Entertainment. “The free-to-play transition at the end of last year is a proof point that our community is stronger and larger than ever. We are very proud of what we’ve accomplished thus far and look forward to continuously striving to improve the game.”

To celebrate the game’s one-year anniversary, players will receive a special one-of-a-kind One Year Anniversary Cape that features a number “1” on the back. The cape will be granted to players through their mission journal on January 11. The character must exist on the 11^th to be eligible to receive the mission. However, players do not need to log in on the 11^th; as long as the character exists on the 11^th, players will receive the mission the next time they log in.

The game went free to play late last year and has been a hit among MMO fans and comic book fans a like. More on what the game has accomplished in it’s first year after the jump.

The main benefit to Sony’s DC Universe Online being a mass-multiplayer online role playing game is that they are constantly updating the software with new and exciting add-ons and challenges. During the month of February, they added the Valentine’s arena in which players fought as cherubic angels against one another.

This month, the digital universe is going back to it’s comic book roots with a story plucked straight from the panels in which Batman’s worldwide security system, Brother Eye, goes haywire and needs to get taken down. Here’s the official description from SOE.

The Batcave Inner Sanctum, the latest group combat raid from DC Universe Online, reveals the fight inside the Batcave to prevent Brother Eye from accessing the cave’s main computer in hopes of using it as a nexus point for sending signals around the world. Will Brother Eye succeed, or are the heroes inside the DC Universe up to the challenge?

The raid is currently available, and we’ve got a sneak peek for you to check out exactly what you’re in for, just after the jump.