Short description of Global Defense Network 1.0: The GDN is a combination of fast paced shooter and rhythm action game with an intriguing sci-fi plot spread evenly throughout. The Global Defense Network has released their proprietary training simulator to the public. Charged with defending against aggressive extra terrestrial activity, the GDN has begun to seek out gifted individuals to assist in their efforts. Get the game, test your skills, and see if you are good enough to be a GDN Agent.