Should work in a multi-player, with one side running zombies. The building ones can be CPU, but the bridge ones should be controlled. Of course, that would change strategy for defense, but the survivors could be given more time or something.
5/5 but why did the teacher in teh start say his planet was under attack? wasnt all humanity inside the city already? and how could humans be so stupid as to sit and watch the creeper attack instead of bombing the crap out of it?
 "Shattered Colony: The Survivors")
 "Viricide")
 "VVVVVV Demo")
 "1066")
 "Buggle Connect")
 "Apocalypse")
 "Creeper World Training Sim")
 "Solar Chiefs")
 "Battalion: Ghosts")
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 "Heroes of Gaia"){kind=icon}
 "Arachnophilia")
 "The Great War of Prefectures")
 "Super Crazy Guitar Maniac Deluxe 2")
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 "Pandemic 2")