Thinking of print -
Card’s MD (Molecular Disruption) device
Beserkers
Bear’s Forge of God slugs
Adams’ Volgon destructor fleets (in the last book they worked through all alternant universes).
And there is one story I can’t seem to remember the name/author. The plot dealt with someone sent to stop a automatic ship that destroys planets by lobbing balls at them until the whole planet’s surface has be hit. The plot played with the hero arriving after the ship had just “killed” a planet and was reloading. Can anyone point me to this book?
I’ll agree with the Berzerkers. Nothing like a highly intelligent weapon.