SCP-804 (World Without Man)

A damaged art installation by the defunct group
Unelmat Paremmasta Maailmasta titled
"World Without Man".
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You may activate SCP-804 to destroy
everything manmade or resembling such
that you and nearby people possess.
Prolonged exposure to humans deals
20 damage second turn, with 20 additional
damage each subsequent turn(40,60...).
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