The Ke-Z2 series of bombs are mass-produced aether weapons of mass destruction used by the Star Army of Yamatai, with a 50 Megaton yield (equivalent to the real-life Tsar Bomba, which the effects below are sourced from). Like the Ke-Z1 Series Anti-Starship Torpedoes, they are 2.25 meters long and 0.50 meters wide. The bombs detonate 3-4 kilometers over the target. The basic model (Ke-Z2-1A) is unguided but it is designed to be optionally equipped with various guidance modules and has ailerons and an attachment point for a small engine on its tail fins.

This bomb is typically carried by the Ke-V7 "Ginga" Bomber and came to mass production in YE 34 as a cheaper alternative to the similar Ke-Z1 Series Anti-Starship Torpedoes and a cleaner alternative to nuclear weapons. It is designed for use in planets with atmospheres and gravity and is not suited to space use.

24 bombs can be shipped in an SSCC-Medium.

• Damage rating: Tier 12, Heavy Anti-Starship
• The blast can be seen from over 1000 km away and blows out glass windows up to 900 km away.
• The blast obliterates almost anything within 50 kilometers and can ignite or topple houses up to 300 km away.
• The blast produces a 60 km tall mushroom cloud.
• People receive third-degree burns 100 km away.
• Causes a 5 to 7 Richter Scale seismic shockwave.
• Blast strength can be dialed down by increments of 5 MT if desired, with a minimum of 5 MT.

The front of the bomb has a removable detonator mechanism that is stored separately from the bombs. In order to operate, the detonator needs to be pre-loaded with a unique access code.