CityVille: Redeem Zynga Game Card for free Mystery Items

As part of this year's holiday celebration, Zynga is offering free Mystery Items in CityVille with the redemption of a Zynga Game Card within your game. If you plan on purchasing one of these cards for yourself or as a gift this Christmas, make sure to redeem those Cards before December 27, when this promotion ends.

So, what can you win? According to an in-game loading screen, you can either win a truly Mystery Item (in a red and yellow box), or an Ice Rink (a decoration with a 5% payout bonus), Baranovsky House (250-480 population) or an Owl House (620-1240 population). Luckily, it doesn't seem to matter which denomination of card you redeem, as the $10, $25 and $50 options are all shown on the loading screen above. There's also a $15 Game Card that exists but isn't pictured, although I highly doubt it's been excluded from the fun.

Just remember, if you plan on purchasing more than on $10 Zynga Game Card (either through a retail location or as an eCard online) instead of one $25 Card so that you'll win more than one prize, there's no guarantee you won't end up with duplicates. I hope you'll be able to walk away with the exact items you want, so good luck if you redeem multiple cards during this event!

Check out the rest of our Holiday 2011 coverage right here.

Will you buy a Zynga Game Card to earn a free Mystery Box or other item in CityVille? If you already redeemed a card, which of these prizes did you end up with? Sound off in the comments.