To celebrate the launch of their digital comics program, Dark Horse Comics is giving away up to five certain comics digitally, including Mass Effect: Redemption issue #1. The catch is that they want people to sign up for their newsletter. As they reach their newsletter subscription goals, they'll unlock more free comics. Mass Effect: Redemption is the last issue in the list of five comics being unlocked for free, with two currently unlocked at the time of this post. To further sweeten the deal, Dark Horse is also giving away an iPad 2 and $100 in digital comics store credit to one lucky subscriber.