The update will completely change the free-to-play MMO.

Many MMO players have Dec. 7 marked on their calendars as the launch day for World of Warcraft's Cataclysm expansion, which will revamp the game. Well, it looks like Dec. 7 is also the day that the Big Bang will completely reshape MapleStory.

The Big Bang update will introduce an updated user interface, higher resolution, better graphics, new character classes, a higher EXP curve, updated maps and more. To put it simply, everything will change. For more details, head over to the Big Bang teaser site and check out the trailer after the jump.