Final Stand for Mac

From Porcellus:

The year is 2014, Alien forces have invaded Earth and conquered almost all of it. They have only one piece of land remaining to conquer.... your backyard! Make this final advance as costly to the alien forces as possible! Make them feel the pain they've caused Humanity. This is Humanity's Final Stand, make it count!
Blaze away at Alien ground forces with an arsenal of 10 unique weapons, from desert eagles and ak-47s to rocket launchers and flame-throwers! Gain powerful bonuses and level up while slaughtering Aliens! Soak the ground in Alien blood!