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As the mysterious and powerful "Guardian of Earth" your steely eye and HYPER-POWERED LASER ARM have kept the citizens of Earth safe for generations (as well as proving a hit with the ladies).

Who's That Flying?!

As the mysterious and powerful "Guardian of Earth" your steely eye and HYPER-POWERED LASER ARM have kept the citizens of Earth safe for generations (as well as proving a hit with the ladies).

With all your awesome TALENT and FLAIR, surely it would be IMPOSSIBLE for a devastating invasion of Doom Beasts to descend on your cities and cause havoc without your knowledge? (Even if you were MAYBE showboating for a magazine photo-shoot at the time...)

Now, you must not only defend your cities from the ravenous hordes of Doom Beasts - you must defend yourself against accusations of gross incompetence from the Galactic Council of Justice! And this is all BEFORE you can even start to get to the bottom of just who OR what is really behind the attacks...

Minimum Requirements:

OS: Windows XP
Processor: 2Ghz or Higher
Memory: 1 Gb
Hard Drive: 400 mb
Sound: Windows compatible sound card

To activate the Steam key you've received, follow the instructions below;

First up, open the Steam client. (If you don't have it, simply click the "Install Steam" button here => Steam Store )
Sign in to your Steam account. (If you don't have one, click here to create a new one => Steam Account)
Click on the "ADD A GAME" button in the bottom corner of the client.
Then, select "Activate a product on Steam..."
Write down or copy-paste the activation key that you've received from %s in the window.
Your game is now visible in your library! Click on your "Library".
And finally, click on the game and select "Install" to start your download.