Heh, now how would we judge Prototype in that context... You aren't encouraged to kill innocents at random (no EP reward, anything evil gives EP rewards) but your character can gain health by absorbing them. You can decide not to do that and only eat the zombies and soldiers who are after you (and both plotting genocide) but that leaves you with fewer food sources if **** hits the fan. Your attacks tend to have AOE so you have to aim carefully if you want to avoid civilian casualties but again the game doesn't care what you do to civilians, it keeps track of how many you kill but that's it. On the other hand you can decide to be reckless and activate massive AOE attacks in the middle of crowds to pick out the few soldiers that are mixed in, you can decide to plow across the sidewalk in a tank, running people over by the dozen, you can decide to eat them for health (though that sets your disguise to civilian which is less helpful than a military disguise) or you can even decide to pull random **** like hurling yourself off a skyscraper into an elbow smash onto some bystander for absolutely no reason except lulz or aiming thermobaric missiles at crowds.
IIRC none of the missions in Prototype require you to attack civilians so your treatment of them is purely a mirror of your own personality... Is this game immoral?