GameTap announces the newest addition to the free section of this subscription game service, as X-Com: UFO Defense has been added to their free roster. The classic strategy game will remain gratis until February 5. They also announce tomorrow will kick off a free play weekend for volume one of American McGee's Grimm, to be followed next week by a free play weekend for volume two. This will lead up to the launch of the third and final volume of episodes from the fairy tale-inspired series on February 12.