DefenseGrid2Defense Grid 2, the follow-up to the 2009 original, finally has a release date — that of September 23, 2014.  The original Defense Grid: The Awakening is well-liked, combining the already addictive genre of tower defense with striking, colorful sci-fi visuals, along with a fun A.I. companion who has a unquenchable desire for raspberries.  Defense Grid 2 carries on this tradition whilst adding new towers, including the Boost Tower, which acts as a cheap way to route enemies early on and then can be used as a build pad for normal towers.  The build pad even offers exclusive upgrades to the towers built upon it.  Another feature also emphasized this time around will be statistics, which will be displayed in easier-to-understand ways over the course of the mission.  Defense Grid 2 will be released digitally on Xbox One, PlayStation 4, PC, Mac, and Linux.