To celebrate the Appstore turning 4 years old Amazon has made 34 paid apps free for a limited time.

Amazon Birthday giveaway

Amazon's latest giveaway in the Amazon Appstore includes $105 of paid content for free now through March 21. Titles in this promotion include Cut the Rope, World of Goo, EasyTether and many more.

The full list of apps that are currently free, includes:

To download these apps you will need to have the Amazon Appstore installed, which you can download right here. Once installed be sure to check out all the deals, and downloading any one of these apps enters you in the running sweepstakes to win $25,000 as well.

Source: Amazon