* 20 floors of intense survival situations and varied objectives
* Numerous missions include gun combat, bomb making, puzzle solving and many other challenges
* Learn how to mix up chemicals to create bombs and how to use a gun as a first timer
* Realistic weapons, which advance in style and power with every accomplished level
* Hack the building's security systems to keep yourself hidden from the terrorists and buy yourself crucial extra time
* Gather medical kits to nullify the effects of your illness, essential in order to complete each mission
* Storyline follows realistic terrorist attack scenarios, but good could prevail if you succeed in your tasks
* A unique mixture of FPS and strategy plot that creates an exhilarating new challenge