For the next 48 hours, GOG is giving away a free copy of the classic 2003 cel-shaded conspiracy adventure XIII in exchange for an e-mail subscribe.
GOG store page
– Account required: GOG.com (with marketing opt-in)
– DRM-Free once claimed (NOT Steam)
– Offer ends April 01, 1300 GMT
– Steam Store for evaluation.
Scroll down a bit on their front page to find the click ‘n’ collect banner.
Let the games begin!