An energy dense supermaterial
Just what it says on the tin
An insidious weapon born from terrorists and adopted by the military
A highly banned and controversial substance in the Cosmic Era
One of the strangest weapons deployed by Z'pl'rt the Mad
Admirals, I present to you the future of space warfare! No longer will you need to waste billions of credits on costly space battles, and millions of lives on planetary warfare with hostile cultures. For only a fraction of the cost of a heavy cruiser, I present you with a weapon capable of eliminating an entire solar system. "I present the Star Hammer!"
(A powerful and deviously simple weapon to make space warfare in any sci-fi game forever changed)