Icy Tower is a Facebook game made by Free Lunch Design that is ancient in Facebook terms, having released in September of 2009. It has gained traction over the last few months and currently has 1.5 million monthly players. The game has now broadened its reach and spread to the Apple App Store with an iPhone and iPod Touch version. The iPhone version of the game is being marketed as a Digital Chocolate game, so it is clear there is some kind of partnership between the two companies for this title.
Icy Tower is a classic casual game, probably much better suited to a mobile device than Facebook. It's similar in play to the popular iPhone game Doodle Jump in that you have the ability to jump and control the direction of your character, and your objective is to reach the top of the tower. You go up and up, bouncing off platforms, avoiding enemies while passing your friends in rank. You're given the opportunity to brag about passing your friends, and accumulate a high score to share on your Facebook wall.
There are four towers available and you can play as 5 different avatars. There is a free version and a paid version available for $2.99 in the App Store, so you can give the game a try and see if you like it before buying it.
Play Icy Towers on iPhone >