To participate, all you need to do is leave a comment to this post telling us what Cities XL feature you're looking forward to the most. All participants will then be contacted by Monte Cristo with their unique key and instructions on downloading the client. Eligibility for this giveaway will close on Wednesday, July 8th, 2009 at 8pm EST or when all keys have been given away. If you'd like to find out more on our impressions of the game, check out our latest coverage and a hands-on with the closed beta. Good luck!
[Update: Thank you to all who commented! Eligibility is now closed and you can expect your keys to arrive within the next few days.]