In Survival mangas the MC is usually a pacifist or just doesn't want to kill. Usually the ways the MC survives is other people save or by mistake the opponents accidentally kill themselves while the MC is running away. I want to know if there is mangas where he doesn't consider the moral ambiguity of murder and just kills his opponents.

Basically I don't want a pacifist MC

Zero-the mc is a real bad-ass if pissed, I highly recommend this...
Akame ga Kiru!
Berserk

Not sure about this
Gantz

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Tournament Round 1
Round 2

Freesia: Not exactly a survival but the MC is sort of twisted and fits your description
Luck Stealer: He's an assasin
Kimi no Knife: Also an assassin, doesn't seem to feel any guilt
Cradle of Monsters: Its a survival manga and the MC fits your description

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Dendrobates might fit.. you also have Kyou kara Hitman but no one is currently scanlating this manga

however none of these are survival manga...

Jisatsutou is more about their difficulties, the MC hasnt killed anyone (I'm no sure) but he understands death. He does kill animals if it helps, hes a hunter

Last edited by Dalilt at 11:10 am, Jan 12 2014